试题与答案

In the manufacture of wire rope,if the wir

题型:单项选择题

题目:

In the manufacture of wire rope,if the wires are shaped to conform to the curvature of the finished rope before they are laid up,the rope is called().

A.composite

B.left-lay

C.improved

D.preformed

答案:

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参考答案:对

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