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- 1已知三个球的表面积之比是1:2:3,则这三个球的体积之比为 _ .
- 2甲,乙两城相距560千米.两列火车同时从甲,乙两城相对开3.5小时后相遇.甲车每小时行85千乐,乙车每小时行多少千来?
- 3设3m+n能被10整除,试证明3m+4+n也能被10整除.
- 4one of +最高级后一定用名词复数么
- 5最后一课 韩麦尔先生说法语是世界上最美的语言,我们该怎么理解?
- 6一项工程,甲单独干需要6天,乙单独干需要10天,甲乙合干为什么需要(4/15)天?
- 7she is a____ late for school ,her teacher is angry with her.
- 8A:is it three years since you met him last?B:__three years__since you met him last.t
- 9The mouse ran out the room just now.哪错了?
- 10we don't think she is__honest girl.a.a b.an c.the d./