1. -----Your school is reslly wonderful. -----Yes,it's fully equipped.And every student has free ______ to the library. A.because ... 全文

2009-08-04 10:29 来自版块 - 

已知 2x-y≤0 则2的x+y-2的最大值为多少?? x-3y≥0

2009-08-02 11:23 来自版块 - 

已知函数 f(x)的定义域是[-3,2] ,则函数 F(x)=f(x)+f(-x)的定义域是__________________;函数g(x)=f(2x-1)+f(x的平方)是=————

2009-08-01 15:55 来自版块 - 


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