The（）steels are hardest, strongest, and yet least ductile of the carbon steels， and wear resistant and capable of holding a sharp cutting edge._精华吧

The（）steels are hardest, strongest, and yet least ductile of the carbon steels， and wear resistant and capable of holding a sharp cutting edge.

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The（）steels are hardest, strongest, and yet least ductile of the carbon steels， and wear resistant and capable of holding a sharp cutting edge.

A.low-carbon

B.medium-Carbon

C.high-carbon

D.mild

正确答案：high-carbon

Tag：材料概论时间：2022-01-18 21:17:52

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