（五）
某国对移动通信市场实施放宽准入政策，几年后，共有6家移动运营商进入市场，2005年，按照移动业务收入计算的市场份额排名如下：
排名i
企业
市场占有率Xi
1
C1
30%
2
C2
28%
3
C3
16%
4
C4
14%
5
C5
9%
6
C6
3%
查看答案
There at the door stood a girl about the same height ____.
A as me
B as mine
C with mine
D with me
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
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