下列关于物质分类合理的是( ) A.油、干木棒、陶瓷是绝缘体 B.铅笔芯、橡胶、 发布时间:2017-06-08 14:23 │ 来源:www.tikuol.com 题型:选择题 问题: 下列关于物质分类合理的是( )A.油、干木棒、陶瓷是绝缘体B.铅笔芯、橡胶、铁是导体C.铁、冰、玻璃是导体D.蜂蜡、食盐、水银是非晶体
题型:选择题 Last week, only two people came to look at the house,________wanted to buy it. [ ]A. none of them B. both of them C. none of whom D. neither of whom 查看答案