题目内容

He is a person that you can always count _____when you need help.

A. at
B. on
C. to
D. with

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Betty loves reading. _____ , "Reading is the most wonderful thing in the world."

A. In a rage
B. In good repair
C. In her words
D. In a loud voice

This restaurant is very popular because it has some separate, smaller rooms _____ for families with small children.

A. resolved
B. released
C. responded
D. reserved

带传动的设计准则是（）。

A. 保证带具有一定寿命
B. 保证带不被拉断
C. 保证不发生滑动的情况下，带又不被拉断
D. 保证传动不打滑条件下，带具有一定的疲劳强度

V带传动设计时，为防止（），应限制小带轮的最小直径。

A. 小带轮上的包角过小
B. 带的离心力过大
C. 带的弯曲应力过大
D. 带的长度过长