先化简后求值:4x2y-[6xy-3(4xy-2)-x2y]+1,其中x=2,y 发布时间:2017-05-20 14:54 │ 来源:www.tikuol.com 题型:解答题 问题: 先化简后求值:4x2y-[6xy-3(4xy-2)-x2y]+1,其中x=2,y=-12.
题型:解答题 (2013·厦门第一次质量检查)You had better book rooms at the hotel in advance ________ you should find no room on your arrival.A.so that B.even ifC.in case D.now that 查看答案