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单选题
The minimum jack closed height must be less than the distance between the fitting and the ground when the aircraft is on its wheels.
A
A.当飞机离地时，最小的千斤顶的高度必须小于接头和地面之间的距离。
B
B.给飞机安装轮子时，千斤顶的最低闭合高度不能超过顶块和地面之间的距离。
C
C.在顶起飞机之前，最小的顶升高度必须小于顶块和地面之间的距离。
答案解析
正确答案：C
相关知识点：
千斤顶高啥要求，啥时候
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