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单选题
确保地面勤务车的排气不会造成错误的指示。
A
Verify that the bleed air of the ground car can not lead to a wrong information.
B
Make sure that the exhaust from the ground cart does not cause an incorrect indication.
C
Make sure that the wrong indication is caused by the exhaust from the ground cart.
答案解析
正确答案：B
相关知识点：
确保地勤车排气，不造成错误指示
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