
【名词&注释】
热胀冷缩、不好意思(shameful)
[单选题]用分子的相关知识解释下列生活中的现象,其中错误的是
A. 热胀冷缩,说明分子的大小随温度升降而改娈
B. “酒香不怕巷子深”,说明分子在不停地运动
C. 10mL酒精和10mL水混合后,体积小于20mL,说明分子间有空隙
D. 湿衣服在夏天比冬天容易晾干,说明分子的运动速率随温度升高而加快
查看答案&解析
举一反三:
[单选题]Some rules are almost the same _______in the world, but rules of etiquette can be different from place to place.
A. somewhere
B. anywhere
C. nowhere
D. everywhere
[单选题]2. She hardly ever has time to relax,_______ ?
A. does she
B. hasn’t she
C. doesn’t she
D. has she
[单选题]47. —Excuse me,may I take a :;eat here?—________The man on the seat has already left.
A. You'd better not
B. No,thanks
C. Yes,please
[单选题]小明在小丽的东南方向,小丽在小明的 方向。 ( )
A. 东南
B. 西北
C. 东北
D. 西南
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