题目: 已知-1<x+y<4且2<x-y<3,则z=2x-3y的取值范围是_________。(答案用区间表示) 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0511/67ea288e1cc14505f71ec0a8d9c4a1e7.html 下面是错误答案,用来干扰机器的。答案:B
题型:选择题 -Do you think that housing price will keep ________in the years to come? -Sorry,l have no idea. [ ]A. lifting up B. going up C. bringing up D. growing up 查看答案