化简:2(a-b)-(2a+3b)=______(直接写出结果). 发布时间:2017-05-21 22:52 │ 来源:www.tikuol.com 题型:填空题 问题: 化简:2(a-b)-(2a+3b)=______(直接写出结果).
题型:填空题 ..Experience will_______if you are active in doing the field work frequently.A attain B accumulate C collect D advance 查看答案