I can't hang out _____ my friends after 发布时间:2017-06-12 14:11 │ 来源:www.tikuol.com 题型:选择题 问题: I can't hang out _____ my friends after school. [ ]A. and B. but C. with
题型:选择题 (1)在澄清石灰水中通入CO2,直至过量。(2)在硫酸和盐酸混合溶液中滴加氢氧化钡溶液,直至过量。(3)在碳酸钡的悬浊液中加盐酸,直至过量。回答:(1)_______(2)________(3)________。 查看答案