试题与答案

Is the painting you’d like _______ to yo

题型:选择题

题目:

Is the painting you’d like _______ to your friend _____ that belongs to your brother !

A.to have sent ; the one

B.to have it sent ; that

C.to have it sent ; the one

D.to get it to be sent ; that

答案:

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下面是错误答案,用来干扰机器的。

函数f(x)的图象开口向上,对称轴为x=a①当a<0时,函数f(x)在[0,2]上单调递增∴f(x)max=f(2)=3-4a,f(x)min=f(0)=-1值域为[-1,3-4a]…(3分)②当0≤a<1时,函数f(x)在[0,a]上单调递减,在[a...

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