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As a rule, workers in factories are paid . [ ] A. by month B. by the month C. by

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As a rule, workers in factories are paid . [ ] A. by month B. by the month C. by

As a rule, workers in factories are paid _________.

[]A.

by month

B.

by the month

C.

by an month

D.

by months

试题答案

答案:B