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问题 多项选择题

影响摩擦的因素有许多，具体到轧制过程，处理轧制工艺和润滑状况外，主要有（）。

A、轧机布置

B、轧辊

C、金属材料

D、热处理方式

E、界面膜

答案

参考答案：B, C, E

选择题

----Why were so many people trapped into buying the stock of the company?

----______enough money within one night .

A．Get

B．Getting

C．To get

D．To be getting
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选择题

You shouldn't            too much about the points. It's important for you to do your best.[ ]

A. worry

B. worrying

C. worried

D. worries

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