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单项选择题

设A是平面上以有理点(即坐标都是有理数的点)为中心有理数为半径的圆的全体，那么该集合是?()

A、可数集
B、有限集
C、不可数集
D、不确定
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单项选择题Why is M’dear asked when a person is of serious illness?

A．She specializes in treating deadly illness
B．She is like a priest who offers spiritual consolation
C．She is a great doctor of the community
D．She is the leader of the community

单项选择题下列集合与区间[0，1]对等的是?()

A、奇数集
B、偶数集
C、有理数集
D、实数集