利用运算律可以把3x+x改写成[ ] A.(3+x)x B.(3+1)x C.3 发布时间:2017-06-24 19:16 │ 来源:www.tikuol.com 题型:选择题 问题: 利用运算律可以把3x+x改写成[ ]A.(3+ x)x B.(3+1)x C.3(x+x)
题型:选择题 Mum, I was wondering if you could lend me a few dollars until I on Friday.A. get paidB. got paidC.have paidD.had been paid 查看答案