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单选题
主最低设备清单应当以标牌、维修程序、机组运行程序等形式规定适当的限制条件，以及保证可接受的安全水平所需要的其他限制规定。
A
A.The MMEL should specify suitable limitations in the form of placards, maintenance procedures, crew operating procedures, and other restrictions as necessary to ensure an acceptable level of safety.
B
B.The MMEL should be in the form of annunciator, maintenance procedures, crew operating procedures to illustrate applicable limitations and other rules necessary to verify an acceptable level of safety.
C
C.The MEL should cover suitable limitations which are shown in palcards, maintenance procedures, crew operating procedures, and other rules to verify an acceptable level of safety.
答案解析
正确答案：A
相关知识点：
MMEL规定条件确保安全水平
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