题目内容

作单向运转的转轴，在转矩作用下，频繁启停时，其扭转应力的循环特性是（）

A. 对称循环
B. 脉动循环
C. 静应力
D. 非对称循环

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更多问题

在轴的初步计算中，轴的直径是按（）初步计算的

A. 抗弯强度
B. 扭转强度
C. 复合强度
D. 轴段上零件的孔径

There is no right or wrong to experiencing culture shock—it happens to almost everyone, although it occurs in varying degrees.

A. 对
B. 错

In the stage of hostility, people will begin to feel that everything is awful.

A. 对
B. 错

Meeting new people isn't a good way to work through culture shock.

A. 对
B. 错