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- 1go along the road and you will see the shop .
- 2作差比大小:(X+1)²,2X+1
- 3已知x大于0,y大于0,且1/x+9/y=1,求x+y的最小值
- 4how many toys have you got?是什么意思?
- 5求函数的二阶导数y=x^2 e^x
- 6求一篇写雨的文章,100字左右
- 7I am sure they can finish the work____(success)
- 8找规律填数:2,3,4,7,8,11,_,_,32,19,…
- 9函数y=1−x+lgx的定义域为( ) A.[0,1] B.(0,1) C.[0,1] D.(0,1]
- 10已知函数f(x)=sin2x-根号3cos2x+a 求最小正周期和单调增区间