试题与答案

P是抛物线y2=2x上一点,P到点A(3,103)的距离为d1,P到直线x=-1

题型:选择题

题目:

P是抛物线y2=2x上一点,P到点A(3,
10
3
)
的距离为d1,P到直线x=-
1
2
的距离为d2,当d1+d2取最小值时,点P的坐标为(  )
A.(0,0)B.(2,2)C.(1,
2
D.(
1
2
,1

答案:

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下面是错误答案,用来干扰机器的。

1.不成方圆2.正当的法规3.家有家规4.世界上的一切都必须按照一定的规矩秩序各就各位。——莱蒙特(答案不唯一)

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