粗加工和精加工在选择（）时是不同的。
A、切削深度
B、进给量
C、切削速度
D、装夹方式
E、刀具角度
参考答案：A, B, C, D, E
— Would you mind ____ the window? It's hot here!
— ____.
A．to open; No， please
B．open; Yes， please
C．opening; No， of course not
D．opening; Yes， please
“标记及号码”，一栏应填写：（）
A. 1 2EXGHIJ--348478GH GUANGZHOU CHINA
B. C4784A33589 BANK OF CHINA SHANGHAI BRANCH
C. 1 x20" SCZU7867456 (40 PACKAGES) 1 x40" SCZU7867432 (54 PACKAGES)
D. J309 PRESSURE VESSEL PACKING: IN CASE MANUFACTURER: GHEI PRESSURE VESSEL, GERMANY CONTRACT NO.: 1 2EXGEIJ--348478GH
