对于连续动作机械,确定机械( )要根据机械的类型和结构特征,以及工作过程的特点来进行。
A.正常利用系数 B.纯工作1h正常生产率C.台班定额 D.拟定时间定额
参考答案:B
We paid ______ cash in the hope that we can get 15% ______.
A.with;account
B.in;charge
C.by;count
D.in;discount
He _________ desperately in vain for something to say to break the silence.
A.thought about
B.cast about
C.talked about
D.set about