问题
选择题
I ______ the newspaper while my mother _____TV plays yesterday evening.[ ]
A. was reading; was watching
B. was reading; watched
C. read; was watching
D. read; would watch
答案
答案:A
I ______ the newspaper while my mother _____TV plays yesterday evening.[ ]
A. was reading; was watching
B. was reading; watched
C. read; was watching
D. read; would watch
答案:A
要学会从化学的视角认识世界,对下列事实的解释错误的是 ( )
事 实 | 解 释 | |
A | 在公共场所吸烟导致周围的人被动吸烟 | 分子不断地运动 |
B | 干冰升华为二氧化碳气体 | 分子大小发生改变 |
C | 由碳元素组成的金刚石坚硬而石墨很软 | 原子排列方式不同 |
D | 100mL水和100mL酒精混合后体积小于200 | 分子之间有间隔 |