The story books___ by the writer in the

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问题选择题

The story books___ by the writer in the 1960s. [ ]

A. are written

B. were written

C. wrote

答案

答案：B

选择题

You should have told me there was no meeting today, I _____ have run all the way here through the heavy rain. [ ]

A. can't

B. mustn't

C. shouldn't

D. needn't

单项选择题

定期订货法采购是预先确定一个（）和一个最高库存水准，然后以规定的订货周期为周期，周期性地检查库存，发出订货。

A.订货周期

B.提前性

C.时段

D.入库周期