There at the door stood a girl about the same height ____.
A as me
B as mine
C with mine
D with me
查看答案
It can be concluded that _____
A. Finnish people are not smart enough in daily life
B. Finland has been a good place for cheats
C. the Finnish society is of very high moral level
D. all the Finns are rich
．如图所示，一束光线由某种介质射向该介质与空气的交界面，发生反射和折射．当入射角i=300时，折射光线与反射光线恰好垂直，则该介质的折射率为
A. to B. by C. for D. after
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