在轧钢生产单位,通常把钢材上的缺陷分为两大块,其一是钢质不良带来的缺陷;其二是轧钢操作不良造成的缺陷。
参考答案:对
Don’t worry and I’ll get your car fixed ___ .
A.at no time
B.in no time
C.at a time
D.at all times
— Must I do it now?
— No, you____.[ ]
A. won't
B. needn't
C. can't
D. don't