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单选题
In the description of the airplane＇s Flight Instruments, how to check them for proper operation and how to recognize a malfunction shall be explained.
A
描述飞机飞行仪表系统时，应说明查看其正常工作的方式以及识别失效的方式。
B
描述飞机飞行仪表系统时，应说明如何检查其是否正常运行以及如何识别故障。
C
描述飞机飞行仪表系统时，应说明检查其正常运行的方式以及识别障碍的方式。
答案解析
正确答案：B
相关知识点：
描述飞行仪表检查故障方法
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