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
参考答案:B, C, E
----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
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