With the crop’s production rapidly food price is year by year.　　A. go up; going down　　　

问题补充：

With the crop’s production rapidly, food price is year by year.

A. go up; going down

B. going up; go down

C. going down; going up

D. going down; go up

答案：

A. go up; going down

B. going up; go down

(答案→)C. going down; going up

D. going down; go up

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