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问题 多项选择题

路线价通常在同一路线价区段内选择一定数量以上的标准临街宗地，运用收益法（通常是其中的土地剩余技术）、市场法等，分别求其单位价格或楼面地价。然后求这些标准临街宗地的单位价格或楼面地价的（），即得该路线价区段的路线价。

A.随机数

B.加权算术平均数

C.中位数

D.众数

E.质数

答案

参考答案：B, C, D

完形填空
完形填空。
     Earth Hour is a global event organized by WWF(World Wide Fund for
Nature).  It    l    on the last Saturday of March every year.   2_ this day, every family and business will turn off their non-essential lights and other electrical things _3   0ne hour to tell people the need to _ 4   0n climate change.   
     Earth Hour was first held four years ago in Sydney, Australia. About 2.2 million people and thousands of bussiness _ 5     their non-essential /lighs.  
Following Sydney's lead, many   6   cities around the world adopted the event in March 2008. Morethan 400 cities,_7   bussiness and over 50 million
people around the world tumed off their lights for one hour. Earth Hour
2009 was   8   larger. 88 countries and 4,088 cities took part in Earth Hour
2009. It is ten times more cities than Earth Hour 2008 had.      
     Earth Hour 2010 took place   9    March 27, 2010 from 8:30 pm t0 9:30
pm local time. We believe it must be another largest climate event in the
history.    
     We have only one   10   . Let's love it.
( )1. A. hold        
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( )6. A. others      
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( )9. A. in          
( )10.A. sun          		B. held          
B. On            
B. in            
B. take place    
B. turn off      
B. the other    
B. thousands of  
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B. earth         		C. is held    
C. At        
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C. take away.
C. turn down  
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C. moon       		D. was held      
D. During        
D. for          
D. take off      
D. turn up      
D. another      
D. thousand      
D. so            
D. during        
D. city          
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问答题 简答题

预防病毒性疾病的疫苗各有何优缺点？
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