Passage Two

　　Questions 6 to 10 are based on the following passage:

　　All aircraft are equipped with a communication and an entertainment system. The communication system is the cabin intercommunication data system. It includes the interphone system and the passenger address system. The entertainment system provides the passengers with varied and interesting videos, films and audio programs during the flight.

　　The function of the interphone is to provide communication and call facilities between: cockpit crew and cabin attendants, cockpit crew and ground service staff, cabin attendants and cabin attendants, cabin and ground service staff. Each main cabin attendant station is equipped with an attendant handset, which is accessible to attendants while strapped in their seats.

　　The passenger address system allows cabin announcements to be made to passengers through loudspeakers. It can be operated from the cockpit or from the cabin. The pre-recorded announcement and boarding music are transmitted to the passengers through the passenger address system. Five minutes before boarding, cabin attendants check the boarding music for the correct volume. The music is played until five minutes before takeoff but not during the flights. The announcements are also transmitted to the passengers through the headsets from the passenger entertainment system.

　　The passenger entertainment system transmits pre-recorded audio and video programs to the passengers. The passengers can hear the audio programs through the headsets connected to the passenger control units. The passenger entertainment system comprises audio reproducers and the passenger control unit. Each of the audio reproducers gives a number of different music programs from tape cassettes or compact disks by using the passenger entertainment system music controller. The passenger control unit is installed on the armrest of each seat.

　　6. A communication system includes ______.

　　A. the interphone system and the passenger address system

　　B. the audio programs and passenger control system

　　C. the passenger control system and music controller

　　D. the pre-recorded audio and video programs

　　7. The entertainment system provides the passengers with ______.

　　A. videos B. films

　　C. audio programs D. All above

　　8. The passenger address system allows cabin announcements to be made to passengers through ______ .

　　A. audio programs B. call button

　　C. headsets D. loudspeakers

　　9. The passenger entertainment system transmits ______ to the passengers.

　　A. the interphone system and the passenger address system

　　B. pre-recorded audio and video programs

　　C. the passenger control system and music controller

　　D. the audio programs and passenger control system

　　10. Which of the following statements is NOT true according to the passage?

　　A. The passenger entertainment system comprises audio reproducers and the passenger control unit.

　　B. Each main cabin attendant station is equipped with an attendant handset, which is accessible to attendants while strapped in their seats.

　　C. The passenger control unit is installed on the armrest of each seat.

　　D. Fifteen minutes before boarding, cabin attendants check the boarding music for the correct volume.