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【单选题】
68关于电动绞缆机对拖动电动机的基本要求的叙述中,正确的是绞缆机电动机   。
A.
在情况下不能工作
B.
要有软的或下坠的机械特性
C.
用普通长期工作制电机
D.
允许1分钟以上的电机
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A.
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A.
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A.
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A.
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B.
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C.
get on.
【单选题】According to the passage, we can infer that
A.
teenagers sometimes are promotion targets.
B.
many people don't want to be bothered by ads.
C.
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D.
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