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- 1甲乙两车同时从A.B两地相向而行,在离A地80千米处第一次相遇然后两车继续前进,甲车到达B地.乙车到达A地后均立即按原路返回,第2次相遇与A地的距离占AB两地距离的5分之2处相遇.A.B两地间的路程是多少千米?
- 2已知椭圆E的中心在原点,焦点在x轴上,椭圆的焦距为2,离心率e=1/2,直线l:y=k(x-1)(k≠0)
- 3I 'll always be here with you 求翻译
- 4吴广素爱人,士卒多为用者.是啥意思?
- 5Reading many books _____like talking with your bestfriends.A are B were C is D does
- 6我国首次完成太空行走任务的是神舟几号上的航天员他是谁?
- 7Does the tiger eat meat? Do tigers eat meat?
- 8O2能不能让淀粉KI试纸变蓝
- 9They must be waiting for us,()?a.aren't they b.mustn't they 求辨析
- 10用所给词的适当形式填空.1.Monday is the ___(tow)day of a week.2.Look!It_____(rain)hard now .