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试题详情及答案解析
下列一组数:−8,2.7,,0.66666…,0,,0.080080008…,其中是无理数的有(   )
A.0个B.1个C.2个D.3个
答案:C.
试题分析:无理数有:,0.080080008…共有2个.故选C.
考点:无理数.