Presentation is loading. Please wait.

Presentation is loading. Please wait.

TECHNICIAN CLASS Mind Our Rules pages 53 - 61 pages 53 - 61.

Similar presentations


Presentation on theme: "TECHNICIAN CLASS Mind Our Rules pages 53 - 61 pages 53 - 61."— Presentation transcript:

1 TECHNICIAN CLASS Mind Our Rules pages 53 - 61 pages 53 - 61

2 1) T2D09 How might you best keep unauthorized persons from using your amateur station? A. Disconnect the power and microphone cables when not using your equipment. A. Disconnect the power and microphone cables when not using your equipment. B.Connect a dummy load to the antenna. B.Connect a dummy load to the antenna. C.Put a “Danger – High Voltage” sign in the station. C.Put a “Danger – High Voltage” sign in the station. D.Put fuses in the main power line. D.Put fuses in the main power line.

3 1) T2D09 How might you best keep unauthorized persons from using your amateur station? A. Disconnect the power and microphone cables when not using your equipment. A. Disconnect the power and microphone cables when not using your equipment. B.Connect a dummy load to the antenna. B.Connect a dummy load to the antenna. C.Put a “Danger – High Voltage” sign in the station. C.Put a “Danger – High Voltage” sign in the station. D.Put fuses in the main power line. D.Put fuses in the main power line.

4 2) T1C11 Which of the following types of communications are not permitted in the Amateur Radio Service? A.Brief transmissions to make adjustments to the station. A.Brief transmissions to make adjustments to the station. B.Brief transmissions to establish two-way communications with other stations. B.Brief transmissions to establish two-way communications with other stations. C.Transmissions to assist persons learning or improving proficiency in CW. C.Transmissions to assist persons learning or improving proficiency in CW. D.Communications on a regular basis that could reasonably be furnished alternatively through other radio services. D.Communications on a regular basis that could reasonably be furnished alternatively through other radio services.

5 2) T1C11 Which of the following types of communications are not permitted in the Amateur Radio Service? A.Brief transmissions to make adjustments to the station. A.Brief transmissions to make adjustments to the station. B.Brief transmissions to establish two-way communications with other stations. B.Brief transmissions to establish two-way communications with other stations. C.Transmissions to assist persons learning or improving proficiency in CW. C.Transmissions to assist persons learning or improving proficiency in CW. D.Communications on a regular basis that could reasonably be furnished alternatively through other radio services. D.Communications on a regular basis that could reasonably be furnished alternatively through other radio services.

6 3) T2A09 When does the FCC allow an amateur radio station to be used as a method of communication for hire or material compensation? A.Only when making test transmissions. A.Only when making test transmissions. B.Only when news is being broadcast in times of emergency. B.Only when news is being broadcast in times of emergency. C.Only when in accordance with part 97 rules. C.Only when in accordance with part 97 rules. D.Only when your employer is using amateur radio to broadcast advertising. D.Only when your employer is using amateur radio to broadcast advertising.

7 3) T2A09 When does the FCC allow an amateur radio station to be used as a method of communication for hire or material compensation? A.Only when making test transmissions. A.Only when making test transmissions. B.Only when news is being broadcast in times of emergency. B.Only when news is being broadcast in times of emergency. C.Only when in accordance with part 97 rules. C.Only when in accordance with part 97 rules. D.Only when your employer is using amateur radio to broadcast advertising. D.Only when your employer is using amateur radio to broadcast advertising.

8 4) T2D04 Which of the following is a prohibited amateur radio transmission? A.Using amateur radio to seek emergency assistance. A.Using amateur radio to seek emergency assistance. B.Using amateur radio for conducting business. B.Using amateur radio for conducting business. C.Using an amateur phone patch to call for a taxi or food delivery. C.Using an amateur phone patch to call for a taxi or food delivery. D.Using an amateur phone patch to call home to say you are running late. D.Using an amateur phone patch to call home to say you are running late.

9 4) T2D04 Which of the following is a prohibited amateur radio transmission? A.Using amateur radio to seek emergency assistance. A.Using amateur radio to seek emergency assistance. B.Using amateur radio for conducting business. B.Using amateur radio for conducting business. C.Using an amateur phone patch to call for a taxi or food delivery. C.Using an amateur phone patch to call for a taxi or food delivery. D.Using an amateur phone patch to call home to say you are running late. D.Using an amateur phone patch to call home to say you are running late.

10 5) T2A10 What type of communications are prohibited when using a repeater autopatch? A.Calls to a recorded weather report. A.Calls to a recorded weather report. B.Calls to your employer requesting directions to a customer’s office. B.Calls to your employer requesting directions to a customer’s office. C.Calls to the police reporting a traffic accident. C.Calls to the police reporting a traffic accident. D.Calls to a public utility reporting an outage of your telephone. D.Calls to a public utility reporting an outage of your telephone.

11 5) T2A10 What type of communications are prohibited when using a repeater autopatch? A.Calls to a recorded weather report. A.Calls to a recorded weather report. B.Calls to your employer requesting directions to a customer’s office. B.Calls to your employer requesting directions to a customer’s office. C.Calls to the police reporting a traffic accident. C.Calls to the police reporting a traffic accident. D.Calls to a public utility reporting an outage of your telephone. D.Calls to a public utility reporting an outage of your telephone.

12 6) T2A03 When is the transmission of codes or ciphers allowed to hide the meaning of a message transmitted by an amateur station? A.Only during contests. A.Only during contests. B.Only when operating mobile. B.Only when operating mobile. C.Only when transmitting control commands to space stations or radio control craft. C.Only when transmitting control commands to space stations or radio control craft. D.Only when frequencies above 1280 MHz are used. D.Only when frequencies above 1280 MHz are used.

13 6) T2A03 When is the transmission of codes or ciphers allowed to hide the meaning of a message transmitted by an amateur station? A.Only during contests. A.Only during contests. B.Only when operating mobile. B.Only when operating mobile. C.Only when transmitting control commands to space stations or radio control craft. C.Only when transmitting control commands to space stations or radio control craft. D.Only when frequencies above 1280 MHz are used. D.Only when frequencies above 1280 MHz are used.

14 7) T2A07 Which of the following are specifically prohibited in the Amateur Radio Service? A.Discussion of politics. A.Discussion of politics. B.Discussion of programs on broadcast stations. B.Discussion of programs on broadcast stations. C.Indecent and obscene language. C.Indecent and obscene language. D. Morse code practice. D. Morse code practice.

15 7) T2A07 Which of the following are specifically prohibited in the Amateur Radio Service? A.Discussion of politics. A.Discussion of politics. B.Discussion of programs on broadcast stations. B.Discussion of programs on broadcast stations. C.Indecent and obscene language. C.Indecent and obscene language. D. Morse code practice. D. Morse code practice.

16 8) T3C05 Why is indecent and obscene language prohibited in the Amateur Service? A.Because it is offensive to some individuals. A.Because it is offensive to some individuals. B.Because young children may intercept amateur communications with readily available receiving equipment. B.Because young children may intercept amateur communications with readily available receiving equipment. C.Because such language is specifically prohibited by FCC Rules. C.Because such language is specifically prohibited by FCC Rules. D.All of these choices are correct. D.All of these choices are correct.

17 8) T3C05 Why is indecent and obscene language prohibited in the Amateur Service? A.Because it is offensive to some individuals. A.Because it is offensive to some individuals. B.Because young children may intercept amateur communications with readily available receiving equipment. B.Because young children may intercept amateur communications with readily available receiving equipment. C.Because such language is specifically prohibited by FCC Rules. C.Because such language is specifically prohibited by FCC Rules. D.All of these choices are correct. D.All of these choices are correct.

18 9) T3C08 Where can an official list be found of prohibited obscene and indecent words that should not be used in amateur radio? A.On the FCC website. A.On the FCC website. B.There is no official list of prohibited obscene and indecent words. B.There is no official list of prohibited obscene and indecent words. C.On the Department of commerce website. C.On the Department of commerce website. D.The official list is in public domain and found in all amateur study guides. D.The official list is in public domain and found in all amateur study guides.

19 9) T3C08 Where can an official list be found of prohibited obscene and indecent words that should not be used in amateur radio? A.On the FCC website. A.On the FCC website. B.There is no official list of prohibited obscene and indecent words. B.There is no official list of prohibited obscene and indecent words. C.On the Department of commerce website. C.On the Department of commerce website. D.The official list is in public domain and found in all amateur study guides. D.The official list is in public domain and found in all amateur study guides.

20 10) T2D02 What is transmission called that does not contain a station identification? A.Unidentified communications or signals. A.Unidentified communications or signals. B.Reluctance modulation. B.Reluctance modulation. C.Test emission. C.Test emission. D.Intentional interference. D.Intentional interference.

21 10) T2D02 What is transmission called that does not contain a station identification? A.Unidentified communications or signals. A.Unidentified communications or signals. B.Reluctance modulation. B.Reluctance modulation. C.Test emission. C.Test emission. D.Intentional interference. D.Intentional interference.

22 11) T3A05 What term describes a brief test transmission that does not include any station identification? A. A test emission with no identification required. A. A test emission with no identification required. B.An illegal un-modulated transmission. B.An illegal un-modulated transmission. C.An illegal unidentified transmission. C.An illegal unidentified transmission. D.A non-voice ID transmission. D.A non-voice ID transmission.

23 11) T3A05 What term describes a brief test transmission that does not include any station identification? A. A test emission with no identification required. A. A test emission with no identification required. B.An illegal un-modulated transmission. B.An illegal un-modulated transmission. C.An illegal unidentified transmission. C.An illegal unidentified transmission. D.A non-voice ID transmission. D.A non-voice ID transmission.

24 12) T2A05 When may an amateur station transmit unidentified communication? A.Only during brief test not meant as messages. A.Only during brief test not meant as messages. B.Only when they do not interfere with others. B.Only when they do not interfere with others. C.Only when sent from a space station or to control a model craft. C.Only when sent from a space station or to control a model craft. D.Only during two-way or third party communications. D.Only during two-way or third party communications.

25 12) T2A05 When may an amateur station transmit unidentified communication? A.Only during brief test not meant as messages. A.Only during brief test not meant as messages. B.Only when they do not interfere with others. B.Only when they do not interfere with others. C.Only when sent from a space station or to control a model craft. C.Only when sent from a space station or to control a model craft. D.Only during two-way or third party communications. D.Only during two-way or third party communications.

26 13) T3D05 When may you deliberately interfere with another station’s communications? A. Only if the station is operating illegally. A. Only if the station is operating illegally. B.Only if the station begins transmitting on a frequency you are using. B.Only if the station begins transmitting on a frequency you are using. C.Never. C.Never. D.You may cause deliberate interference because it can’t be helped during crowded band conditions. D.You may cause deliberate interference because it can’t be helped during crowded band conditions.

27 13) T3D05 When may you deliberately interfere with another station’s communications? A. Only if the station is operating illegally. A. Only if the station is operating illegally. B.Only if the station begins transmitting on a frequency you are using. B.Only if the station begins transmitting on a frequency you are using. C.Never. C.Never. D.You may cause deliberate interference because it can’t be helped during crowded band conditions. D.You may cause deliberate interference because it can’t be helped during crowded band conditions.

28 14) T1A10 What is a transmission called that disturbs other communications? A.Interrupted CW. A.Interrupted CW. B.Harmful interference. B.Harmful interference. C.Transponder signals. C.Transponder signals. D.Unidentified transmissions. D.Unidentified transmissions.

29 14) T1A10 What is a transmission called that disturbs other communications? A.Interrupted CW. A.Interrupted CW. B.Harmful interference. B.Harmful interference. C.Transponder signals. C.Transponder signals. D.Unidentified transmissions. D.Unidentified transmissions.

30 15) T3D04 What is the proper course of action if you unintentionally interfere with another station? A.Rotate your antenna slightly. A.Rotate your antenna slightly. B.Properly identify your station and move to a different frequency. B.Properly identify your station and move to a different frequency. C.Increase power. C.Increase power. D.Change antenna polarization. D.Change antenna polarization.

31 15) T3D04 What is the proper course of action if you unintentionally interfere with another station? A.Rotate your antenna slightly. A.Rotate your antenna slightly. B.Properly identify your station and move to a different frequency. B.Properly identify your station and move to a different frequency. C.Increase power. C.Increase power. D.Change antenna polarization. D.Change antenna polarization.

32 16) T2A04 When may an amateur station transmit false or deceptive signals? A.Never. A.Never. B.When operating a beacon transmit false or deceptive signals? B.When operating a beacon transmit false or deceptive signals? C.Only when making unidentified transmissions. C.Only when making unidentified transmissions. D.When needed to hide the meaning of a message for secrecy. D.When needed to hide the meaning of a message for secrecy.

33 16) T2A04 When may an amateur station transmit false or deceptive signals? A.Never. A.Never. B.When operating a beacon transmit false or deceptive signals? B.When operating a beacon transmit false or deceptive signals? C.Only when making unidentified transmissions. C.Only when making unidentified transmissions. D.When needed to hide the meaning of a message for secrecy. D.When needed to hide the meaning of a message for secrecy.

34 17) T3C06 Why should amateur radio operators avoid the use of racial or ethnic slurs when talking to other stations? A.Such language is prohibited by the FCC. A.Such language is prohibited by the FCC. B.It is offensive to some people and reflects a poor public image on all amateur radio operators. B.It is offensive to some people and reflects a poor public image on all amateur radio operators. C.Some of the terms used may be unfamiliar to other operators. C.Some of the terms used may be unfamiliar to other operators. D.Your transmissions might be recorded for use in court. D.Your transmissions might be recorded for use in court.

35 17) T3C06 Why should amateur radio operators avoid the use of racial or ethnic slurs when talking to other stations? A.Such language is prohibited by the FCC. A.Such language is prohibited by the FCC. B.It is offensive to some people and reflects a poor public image on all amateur radio operators. B.It is offensive to some people and reflects a poor public image on all amateur radio operators. C.Some of the terms used may be unfamiliar to other operators. C.Some of the terms used may be unfamiliar to other operators. D.Your transmissions might be recorded for use in court. D.Your transmissions might be recorded for use in court.

36 18) T2A02 When is an amateur station authorized to transmit music? A.Amateurs may not transmit music, except as incidental to an authorized rebroadcast of space shuttle communications. A.Amateurs may not transmit music, except as incidental to an authorized rebroadcast of space shuttle communications. B.Only when the music produces no spurious emissions. B.Only when the music produces no spurious emissions. C.Only to interfere with an illegal transmission. C.Only to interfere with an illegal transmission. D.Only when the music is above 1280 MHz. D.Only when the music is above 1280 MHz.

37 18) T2A02 When is an amateur station authorized to transmit music? A.Amateurs may not transmit music, except as incidental to an authorized rebroadcast of space shuttle communications. A.Amateurs may not transmit music, except as incidental to an authorized rebroadcast of space shuttle communications. B.Only when the music produces no spurious emissions. B.Only when the music produces no spurious emissions. C.Only to interfere with an illegal transmission. C.Only to interfere with an illegal transmission. D.Only when the music is above 1280 MHz. D.Only when the music is above 1280 MHz.

38 19) T8B10 What should you do if a reporter asks to use your amateur radio transceiver to make a news report? A.Allow the use but give your call sign every 10 minutes. A.Allow the use but give your call sign every 10 minutes. B.Advise them that the FCC prohibits such use. B.Advise them that the FCC prohibits such use. C.Tell them it is OK as long as you do not receive compensation. C.Tell them it is OK as long as you do not receive compensation. D.Tell the reporter that you must approve the material beforehand. D.Tell the reporter that you must approve the material beforehand.

39 19) T8B10 What should you do if a reporter asks to use your amateur radio transceiver to make a news report? A.Allow the use but give your call sign every 10 minutes. A.Allow the use but give your call sign every 10 minutes. B.Advise them that the FCC prohibits such use. B.Advise them that the FCC prohibits such use. C.Tell them it is OK as long as you do not receive compensation. C.Tell them it is OK as long as you do not receive compensation. D.Tell the reporter that you must approve the material beforehand. D.Tell the reporter that you must approve the material beforehand.

40 20) T2A06 What does the term broadcasting mean ? A.Transmissions intended for reception by the general public, either direct or relayed. A.Transmissions intended for reception by the general public, either direct or relayed. B.Retransmission by automatic means of programs or signals from non-amateur stations. B.Retransmission by automatic means of programs or signals from non-amateur stations. C.One-way radio communications, regardless of purpose or content. C.One-way radio communications, regardless of purpose or content. D.One-way or two-way radio communications between two or more stations. D.One-way or two-way radio communications between two or more stations.

41 20) T2A06 What does the term broadcasting mean ? A.Transmissions intended for reception by the general public, either direct or relayed. A.Transmissions intended for reception by the general public, either direct or relayed. B.Retransmission by automatic means of programs or signals from non-amateur stations. B.Retransmission by automatic means of programs or signals from non-amateur stations. C.One-way radio communications, regardless of purpose or content. C.One-way radio communications, regardless of purpose or content. D.One-way or two-way radio communications between two or more stations. D.One-way or two-way radio communications between two or more stations.

42 21) T2A01 When is an amateur station authorized to transmit information to the general public? A. Never. A. Never. B.Only when the operator is being paid. B.Only when the operator is being paid. C.Only when the transmission lasts more than 10 minutes. C.Only when the transmission lasts more than 10 minutes. D.Only when the transmission lasts longer than 15 minutes. D.Only when the transmission lasts longer than 15 minutes.

43 21) T2A01 When is an amateur station authorized to transmit information to the general public? A. Never. A. Never. B.Only when the operator is being paid. B.Only when the operator is being paid. C.Only when the transmission lasts more than 10 minutes. C.Only when the transmission lasts more than 10 minutes. D.Only when the transmission lasts longer than 15 minutes. D.Only when the transmission lasts longer than 15 minutes.

44 22) T2B08 Which of the following one-way communications may not be transmitted in the Amateur Radio Service? A.Telecommand of model craft. A.Telecommand of model craft. B.Broadcasts intended for reception by the general public. B.Broadcasts intended for reception by the general public. C.Brief transmissions to make adjustments to the station. C.Brief transmissions to make adjustments to the station. D.Morse code practice. D.Morse code practice.

45 22) T2B08 Which of the following one-way communications may not be transmitted in the Amateur Radio Service? A.Telecommand of model craft. A.Telecommand of model craft. B.Broadcasts intended for reception by the general public. B.Broadcasts intended for reception by the general public. C.Brief transmissions to make adjustments to the station. C.Brief transmissions to make adjustments to the station. D.Morse code practice. D.Morse code practice.

46 23) T3C09 What type of subjects are not prohibited communications while using amateur radio? A.Political discussions. A.Political discussions. B.Jokes and stories. B.Jokes and stories. C.Religious preferences. C.Religious preferences. D.All of these answers are correct. D.All of these answers are correct.

47 23) T3C09 What type of subjects are not prohibited communications while using amateur radio? A.Political discussions. A.Political discussions. B.Jokes and stories. B.Jokes and stories. C.Religious preferences. C.Religious preferences. D.All of these answers are correct. D.All of these answers are correct.

48 24) T3B07 Which of these statements is true about legal power levels on the amateur bands? A.Always use the maximum power allowed to ensure that you complete the contact. A.Always use the maximum power allowed to ensure that you complete the contact. B.An amateur may use no more than 200 Watts PEP to make an amateur contact. B.An amateur may use no more than 200 Watts PEP to make an amateur contact. C.An amateur may use up to 1500 Watts PEP on any amateur frequency. C.An amateur may use up to 1500 Watts PEP on any amateur frequency. D.An amateur must use the minimum transmitter power necessary to carry out the desired communication. D.An amateur must use the minimum transmitter power necessary to carry out the desired communication.

49 24) T3B07 Which of these statements is true about legal power levels on the amateur bands? A.Always use the maximum power allowed to ensure that you complete the contact. A.Always use the maximum power allowed to ensure that you complete the contact. B.An amateur may use no more than 200 Watts PEP to make an amateur contact. B.An amateur may use no more than 200 Watts PEP to make an amateur contact. C.An amateur may use up to 1500 Watts PEP on any amateur frequency. C.An amateur may use up to 1500 Watts PEP on any amateur frequency. D.An amateur must use the minimum transmitter power necessary to carry out the desired communication. D.An amateur must use the minimum transmitter power necessary to carry out the desired communication.

50 25) T2D06 How many persons are required to be members of a club for a club station license to be issued by the FCC? A.At least 5. A.At least 5. B. At least 4. B. At least 4. C.A trustee and 2 officers. C.A trustee and 2 officers. D.At least 2 D.At least 2

51 25) T2D06 How many persons are required to be members of a club for a club station license to be issued by the FCC? A.At least 5. A.At least 5. B. At least 4. B. At least 4. C.A trustee and 2 officers. C.A trustee and 2 officers. D.At least 2 D.At least 2

52 26) T1D10 The FCC requires which address to be kept up-to-date on the Universal licensing System database? A.The station location address. A.The station location address. B.The station licensee mailing address. B.The station licensee mailing address. C.The station location address and mailing address. C.The station location address and mailing address. D.The station transmitting location address. D.The station transmitting location address.

53 26) T1D10 The FCC requires which address to be kept up-to-date on the Universal licensing System database? A.The station location address. A.The station location address. B.The station licensee mailing address. B.The station licensee mailing address. C.The station location address and mailing address. C.The station location address and mailing address. D.The station transmitting location address. D.The station transmitting location address.

54 27) T1D09 When may the FCC revoke or suspend a license if the mailing address of the holder is not current with the FCC? A.If mail is returned to the FCC as undeliverable. A.If mail is returned to the FCC as undeliverable. B.When the licensee transmits without having updated the address. B.When the licensee transmits without having updated the address. C.When the licensee operates portable at a different address. C.When the licensee operates portable at a different address. D.If the address is mot updated within the 2 year grace period. D.If the address is mot updated within the 2 year grace period.

55 27) T1D09 When may the FCC revoke or suspend a license if the mailing address of the holder is not current with the FCC? A.If mail is returned to the FCC as undeliverable. A.If mail is returned to the FCC as undeliverable. B.When the licensee transmits without having updated the address. B.When the licensee transmits without having updated the address. C.When the licensee operates portable at a different address. C.When the licensee operates portable at a different address. D.If the address is mot updated within the 2 year grace period. D.If the address is mot updated within the 2 year grace period.

56 28) T2D08 When is the FCC allowed to inspect your station equipment and station records? A. Only on weekends. A. Only on weekends. B.At any time upon request. B.At any time upon request. C.Never. C.Never. D.Only during daylight hours. D.Only during daylight hours.

57 28) T2D08 When is the FCC allowed to inspect your station equipment and station records? A. Only on weekends. A. Only on weekends. B.At any time upon request. B.At any time upon request. C.Never. C.Never. D.Only during daylight hours. D.Only during daylight hours.

58 29) T1C03 Under what conditions are amateur stations allowed to communicate with stations operating in other radio services? A.When other radio services make contact with amateur stations. A.When other radio services make contact with amateur stations. B.When authorized by the FCC. B.When authorized by the FCC. C.When communicating with stations in the Family Radio Service. C.When communicating with stations in the Family Radio Service. D.When commercial broadcast stations are the air. D.When commercial broadcast stations are the air.

59 29) T1C03 Under what conditions are amateur stations allowed to communicate with stations operating in other radio services? A.When other radio services make contact with amateur stations. A.When other radio services make contact with amateur stations. B.When authorized by the FCC. B.When authorized by the FCC. C.When communicating with stations in the Family Radio Service. C.When communicating with stations in the Family Radio Service. D.When commercial broadcast stations are the air. D.When commercial broadcast stations are the air.

60 30) T2B11 When exercising the operating privileges earned by examination upgrade of a license, what is meant by use of the indicator “AG”? A.Authorized General. A.Authorized General. B.Adjunct General. B.Adjunct General. C.Address as General. C.Address as General. D.Automatically General. D.Automatically General.

61 30) T2B11 When exercising the operating privileges earned by examination upgrade of a license, what is meant by use of the indicator “AG”? A.Authorized General. A.Authorized General. B.Adjunct General. B.Adjunct General. C.Address as General. C.Address as General. D.Automatically General. D.Automatically General.

62 Website Resources Practice Test …. www.QRZ.comwww.QRZ.com Looking for your New Call Sign …. www.QRZ.com www.QRZ.com Look up a Pal’s Call sign …. www.hamcall.netwww.hamcall.net Click on WB6NOA …. www.QRZ.comwww.QRZ.com Ham Party Line …. www.eham.netwww.eham.net FCC Site with lots of info …. wireless.fcc.gov/ ARRL’s Call sign Lookup …. www.arrl.org/fcc/www.arrl.org/fcc/

63 TECHNICIAN CLASS Mind Our Rules pages 53 - 61 Thank you for your time. Thank you for your time. Keep studying!!! 73’s Ken – NL7SP


Download ppt "TECHNICIAN CLASS Mind Our Rules pages 53 - 61 pages 53 - 61."

Similar presentations


Ads by Google