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【题目】After the war, a lot of serious problems ________ and the price of food ________ by 20%.

A. rise; rise B. rose; arose

C. arose; rose D. raised; aroused

【答案】C

【解析】句意;战后出现了许多严重的问题,食品价格上涨了20% rise上升arise出现raise上升,提高,为及物动词。故C项正确。

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