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(2002•东城区)在实数-,0,,-3.14,无理数有( ) A.1个 B.2...
(2002•东城区)在实数-
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,0,
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,-3.14,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232449800604862/SYS201310212324498006048018_ST/2.png)
无理数有( )
A.1个
B.2个
C.3个
D.4个
考点分析:
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(2002•上海)在下列各数中,是无理数的是( )
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B.
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C.
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3的结果(保留三位有效数字)是( )
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=±6
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