因为三个数的积是正数,
所以负因数为偶数个,是0个或2个.
故选B.
三个数的积是正数,那么三个数中负数的个数是( ) A.1个 B.0个或2个 C.3个 D.1个或3个
三个数的积是正数,那么三个数中负数的个数是( )
A. 1个
B. 0个或2个
C. 3个
D. 1个或3个
A. 1个
B. 0个或2个
C. 3个
D. 1个或3个
数学人气:388 ℃时间:2019-11-10 19:05:21
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