下列现象，属于光的色散现象的是

【名词&注释】

成年人(adult)、海市蜃楼(mirage)

[单选题]下列现象，属于光的色散现象的是

A. 小孔成像
B. 水中月亮
C. 雨后彩虹
D. 海市蜃楼

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学习资料：

[多选题]—It’s cold today. You’d better _________ your sweater. 学科网 —OK. I will.学科网

—It’s cold today. You’d better _________ your sweater. —OK. I will.

A. p—It’s cold today. You’d better _________ your sweater.
B. put on B．turn on C．get on

[单选题]20．

A. He ．
B. She
C. His
D. Her

[单选题]Not all people like to work but everyone likes to play． All over the world men and women，boys and girls enjoy (21) ． Since the days of long ago，adults(成年人) and children have called their friends together to spend (22) even days playing games．Sports help people to live(23 ) * They help to keep people healthy and feeling good．When they are playing games，people (24) a lot． This is good for their health． Having(25) with their friends makes them happy．

A. In small towns，crowds(人群) meet to watch the bicycle races or the soccer games． In big cities，thousands of people (27) to see an ice-skating show or a baseball game．
B. Boys and girls in China love to (29)． There are wonderful bea-ches and there are beautiful (30) and lakes across the country． The weather is also good for swimming．
D. music
E. movies
F. sports
G. trips

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