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单选题
708、When you do the lifting or lowering of the aircraft, make sure that the persons who operate the lifting lowering equipment have the correct training and knowledge.
A
当水平放置飞机或顶升飞机时,确保操作升降设备的人员学过培训知识
B
在升降飞机时,要确保操作升降设备的人员接受过恰当的培训并具备相应的知识
C
在对飞机进行平衡、s 顶升或放下时;,确保人员接受过升降设备的培训并掌握相关技能
答案解析
正确答案：B
解析：
解析:lifting 提起,吊起; lowering 把…放低to 使…降下。training 训练,培训; knowledge 知识。
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