配对阅读观察图片,使人物与图片配对。1.2.3.4.5.A. Doctor Li 发布时间：2017-04-15 02:15 │ 来源：www.tikuol.com 题型：阅读理解 问题： 配对阅读观察图片,使人物与图片配对。1.2.3.4.5.A. Doctor Liu is a heavy man with glasses. B. Mother 's beautiful, but she's heavy. C. Aunt is good-looking and she has long curly hair. D. Jack is tall and doesn't have any hair.E. Teacher is thin and he's writing at the desk. F. Han Meimei is a tall girl with long straight hair. G. Ted always wears glasses with short curly hair.1.______ 2._____ 3._____ 4.______ 5._____
题型：阅读理解 某化学课外活动小组甲同学欲制备收集A气体，乙同学欲制备收集B气体（制备方法、装置、试剂的化学式均相同）。甲采用排水法却收集到B气体，乙用排空气法却得A气体。下列关于A、B两种气体的叙述不正确的是 [ ]A．B气体只能通过人工合成B．A、B气体分子中均含有极性共价键 C．A、B均不属于酸酐 D．A、B气体相对分子质量之差为16 查看答案
