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若曲线C:y=x3-2ax2+2ax上任意点处的切线的倾斜角都是锐角,那么整数a的值等于                                                                                                              (  )

A.-2                                           B.0

C.1                                               D.-1

高三数学选择题中等难度题

少年,再来一题如何?
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