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问题详情

With a given load on the cargo hook，tension in a single span topping lift（）.

A、increases as the boom's angle to the horizontal increases

B、is at a maximum when the boom is at a 45° angle to the horizontal

C、increases as the boom's angle to the horizontal decreases

D、decreases as the boom's angle to the horizontal decrease

时间：2021-12-31 19:27 关键词：货物保险合同与业务

答案解析

C

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