题目

The European Parliament has some control ______ what happens in each of the member countries. A. in          B. beyond     C. over            D. under   答案:C列方程解应用题:甲列车从A地开往B地,速度是70千米/小时;乙列车同时从B地开往A地,速度是90千米/小时.已知A、B两地相距320千米,两车相遇时各走了多少千米?
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