TC/T452—2009将水泥划分为()等几个等级。
A、优等品
B、一等品
C、二等品
D、合格品
E、三等品
参考答案:A, B, D
—Your English is quite good.
—__________ [ ]
A. Thank you!
B. No, my English is still poor.
C. I don't think so.
D. Do you really think so?
提插补泻中补法操作是()
A.先深后浅,重插轻提
B.先浅后深,重插轻提
C.先浅后深,轻提重插
D.先深后浅,轻插重提
E.先浅后深,快插慢提