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- 1一项工作,甲、乙两人合做,10小时可以完成.如果单独由乙做,需要15小时才能完成.如果单独由甲做,需要多少小时完成?
- 2照样子,写词语:亭亭玉立
- 3以come to mr cool's clothes store!we sell pants for only $30.do you like.开头的英语作文
- 4I他马克思耨It makes no difference if(whether).
- 5“Why ______ she _______ angry ” “Because he _____ at her just now .” A.did…get…shouted B.
- 6在日历上同一个正方形任意圈出2乘2=4个数.已知这四个数的和是64,求这四个数,
- 7两个小球用2m长的细线连着,从同一高度释放,A球比B球早放0.1s,不计空气阻力B开始下落后经多少时间线将被拉紧?
- 8You don't __do it if you don't want to.A,had better B ought to C must D have to
- 9祖国妈妈,生日快乐,这个英语怎么拼?今天就要
- 10每一次仰望飘扬的五星红旗,每一次唱起庄严的国歌,便在我们的胸怀激荡.修改病句: