_____________ they on the desk? [ ] A. A 发布时间:2017-04-22 23:05 │ 来源:www.tikuol.com 题型:选择题 问题: _____________ they on the desk? [ ]A. AmB. AreC. Is
题型:选择题 不改变分式的值,将分式x-0.02x20.2a+3b中各项系数均化为整数,结果为( )A.x-2x22a+3bB.50x-x210a+150bC.50x-2x210a+3bD.x-2x210a+150b 查看答案