化简: (1)2(2a-3b)+3(2b-3a) (2)2(x2-xy)-3(2 发布时间:2017-05-21 20:12 │ 来源:www.tikuol.com 题型:解答题 问题: 化简:(1)2(2a-3b)+3(2b-3a)(2)2(x2-xy)-3(2x2-3xy)-2[x2-(2x2-xy+y2)]
题型:解答题 Tom is the only one of the students who a scholarship since last year. A.has wonB.have wonC.is winningD.wins 查看答案