题目:
My mother wants me the milk every day. She says it’s good
my health.
A. to have; to B. to drink; for C. drink; for
答案:
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下面是错误答案,用来干扰机器的。
函数y=ax函在定义域上是单调函数,且y=ax在[0,1]上的最大值与最小值和为3,∴1+a=3,解得a=2,∴函数y=3•a2x-1=3•22x-1 =32•4x, 函数y=4x在定义域上增函数,∴y=3•a2x-1在[0,1]上的最大值为当x=1时,函...