题型:选择题 --What do you think of the price of these computers?--They are at least equal in price to, if not cheaper than, ____at the other companies.A it B. ones C.that D.the ones 查看答案
题型:选择题 下列有关电解水实验的叙述中,错误的是( )A.与电源负极相连的一端产生气体可被点燃B.与电源正极相连的一端产生气体能使带火星的木条复燃C.正、负极产生的气体质量比是1:2D.可证明水由氢、氧元素组成 查看答案