试题与答案

金属抵抗性永久变形和断裂能力是钢的（）。A、强度和塑性B、韧性C、硬度D、疲劳强度

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题型：单项选择题

题目：

金属抵抗性永久变形和断裂能力是钢的（）。

A、强度和塑性

B、韧性

C、硬度

D、疲劳强度

答案：

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