A、 The fuel shut off valves function as fire cocks.
B、 The shut off valves are used to prevent fire accidents.
C、 The extinguishers should function as shut off valves.
答案：A
A、 The fuel shut off valves function as fire cocks.
B、 The shut off valves are used to prevent fire accidents.
C、 The extinguishers should function as shut off valves.
答案：A
A. 确保P36面板上的“交流已连接”及“未使用”指示灯点亮。
B. 确保交流电已连接,并且P36面板上的“未使用”指示灯处于点亮状态。
C. 确保P36面板上的交流已连接指示灯点亮,但其并末使用。
A. The manufacturer＇s marks, publication title, airplane model, and issue or revision date must shown on all pages.
B. The manufacturer＇s headline, publication title, airplane model, and issue or revision date must print on all pages.
C. The manufacturer＇s masthead, publication title, airplane model, and issue or revision date must appear on all pages.
A. If an airplane is suspended, if would balance at the point called the center of gravity.
B. The center of gravity is the point of an airplane, it would hardly balance if suspended.
C. If an airplane is hung, it wouldn＇t balance at the point called the center of gravity.
A. Connect the cover immediately.
B. Attach the cover temporarily.
C. Install the cover permanently
A. Put the mark in its correct position with the help of the clamp.
B. The clamp can be used to let you set the mark in its correct position.
C. The mark can be used to let you put the clamp in its right position.
A. 在最后运转发动机20分钟。
B. 在地面运转发动机20分钟。
C. 发动机慢车运转20分钟。
A. 紧急刹车的程序应被规定
B. 紧急逃离的程序应被规定
C. 紧急下降的程序应被规定
A. You do not need to give the return processes in its entirety unless you need to comprehend the system.
B. Unless you need to comprehend the system,do not need to fully show the return lines.
C. Return lines need not be shown completely if the system need not be realized.
A. The solution cause damage to primer.
B. The solvent cause damage to the second finish.
C. The solvent is harmful to primer.
A. 电磁阀应如此标明,并应包括表示该阀是弹簧加载到打开位置还是关闭位置的符号。
B. 电磁阀应如此标明,并应包括表示该阀是弹簧加载到打开位置或者关闭位置的符号。
C. 电磁阀应如此标明,但不包括表示该阀是弹簧加载到打开位置还是关闭位置的符号。
