考试
2020-03-14 18:21:46

7219 亚共析钢的含碳量范围是:()A.0.0218% ~

题目描述

亚共析钢的含碳量范围是:()A.0.0218% ~ 0.77%C;B.0.0008% ~ 0.0218%C;C.2.11% ~ 4.3%CD.0.77%



亚共析钢的含碳量范围是:()

A.0.0218% ~ 0.77%C;

B.0.0008% ~ 0.0218%C;

C.2.11% ~ 4.3%C

D.0.77% ~ 2.11%C;

答案解析

A

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