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. 5.某轴材料为低碳钢,工作时发生弯扭组合变形,对其进行强度计算时,宜采用()。

单选题
2021-09-02 00:21
A、第一或第二强度理论
B、第二或第三强度理论
C、第一或第四强度理论
D、第三或第四强度理论
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正确答案
D

试题解析

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