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- 1i did many things ,the things are very important.合并为一句.I did many things__are very important
- 2孩子的五年级数学题,在线等.谢谢
- 3当K=什么时,多项式X平方-3KXY-3y的平方-XY-8中不含XY项
- 4函数f(x)=(x²+4x+5)/(x+1) ,(x>-1)的最小值为
- 5脑筋急转弯1.Who can stop a car with one hand only?_____2.What kind of hand cannot hold only?______
- 6为什么功率测量不测相电压和相电流,而是测量线电压与线电流?
- 7英语翻译:需要跟父母商量
- 8英语翻译
- 9压强和密度的关系
- 10mum,i am happy at school.-----------.a i am glad to hear that.b yes ,i am c