设f(x)是连续函数, 则f(x)= A. x2 B. x2-2 C 2x D

昕玥2019-12-17  17

问题 设f(x)是连续函数,则f(x)=A. x2 B. x2-2 C 2x D. x2 -16/9

选项

答案D

解析[img]/upload/tiku/190/2457159_1.jpg[/img]
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