题目

 ——Come on! I know you have ____gift for music.    ------ Sorry. But I’m in _____ bad mood today.   A. / ; a      B. the ; /      C. a ; a       D. the; a 答案:C甲乙两车分别从A、B两地同时出发相向而行,两车在距中点30千米处相遇,已知甲行完全程要10小时,乙行完全程要15小时,求A、B两地相距多少千米?
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