试题与答案

抛物线y=8x2的焦点坐标是( ) A.(2,0) B.(-2,0) C.(0,132

题型:选择题

题目:

抛物线y=8x2的焦点坐标是(  )
A.(2,0)B.(-2,0)C.(0,
1
32
D.(0,-
1
32

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E

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A.integrity

B.completeness

C.specific

D.operation

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