题目内容

33. There is no (different)_____________in the brains of those who exercise with light intensity as comparedwith those who do not exercise at all.

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34.When they entered the area,the visitors (require)___________to turn off their smartphones.

35. When it comes to shopping habits, he suggested (buy)__________products that arc made from recycledmaterials.

判断题：()1､所有类型主减速器都能改变转矩旋转方向90°。

A. 对
B. 错

判断题：()2､从动锥齿轮与差速器壳用螺栓连接，从而二者装成一体。

A. 对
B. 错