试题与答案

当绳索负重时,拐角加大磨损,并可能切断绳索。可利用锋利物或各种不同的方式保护绳索。

题型:判断题

题目:

当绳索负重时,拐角加大磨损,并可能切断绳索。可利用锋利物或各种不同的方式保护绳索。

答案:

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参考答案:2

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