试题与答案

曲线y=lnx上一点P和坐标原点O的连线恰好是该曲线的切线,则点P的横坐标为(

题型:选择题

题目:

曲线y=lnx上一点P和坐标原点O的连线恰好是该曲线的切线,则点P的横坐标为(  )
A.e2B.
e
C.eD.2

答案:

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