5个有理数的积是负数,则正因数个数为( ) A.2个 B.4个 C.1个、3个或5个D 发布时间:2017-04-21 20:31 │ 来源:www.tikuol.com 题型:选择题 问题: 5个有理数的积是负数,则正因数个数为( )A.2个B.4个C.1个、3个或5个D.0个、2个或4个
题型:选择题 -Kate dances so well. Has she ever been trained? --No. He learns all by herself. She ______ goes to any training class.A.usuallyB.oftenC.neverD.even 查看答案