30. It is the sixth month in which exports have fallen because of the economy crisis.A. i

问题补充：

30. It is the sixth month in which exports have fallen because of the economy crisis.

A. in a row

B. in total

C. in all

D. in order

答案：

(答案→)A. in a row

B. in total

C. in all

D. in order

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