问题 单项选择题

利用回归模型进行市场预测,对( )方差分析、相关检验和t检验的检验效果是相同的。

A.完全竞争市场情况
B.一元线性回归情况
C.短期预测
D.中长期预测

答案

参考答案:B

完形填空
完形填空。
    Canada is the second largest country in the world. It is over 7 000 kilometers from the   1   coast to the
east. It   2   six time zones.   3   it is 9 a.m. in Vancouver on the west coast, it is 1:30 p. m in Saint John on
the east coast.
    English and French   4   the two main languages in Canada. About 60 percent of   5   population speak
French. More   6   70 percent of its population live in cities near the U.S. border (边境).
    Ottawa is the capital. Every year millions of tourists go there to   7   museums and take part in the cultural
(文化的) activities. Toronto is the largest city of the country   8   about 2.5 million people. Montreal is   9   
second biggest French-speaking city in the world.
    The maple (枫树) leaf is the national symbol of Canada. The Canadian flag has a red maple leaf on a red
 10  white background.
( )1. A. west  
(     )2. A. is    
(     )3. A. Which  
(     )4. A. are  
(     )5. A. their 
( )6. A. up    
(     )7. A. see  
( )8. A. with  
(     )9. A. a    
(     )10. A. or    
B. east 
B. had 
B. What 
B. is  
B. his 
B. over        
B. visit
B. for 
B. an  
B. and 
C. south  
C. has      
C. Where    
C. will be      
C. its      
C. about  
C. look      
C. from    
C. the      
C. but    
D. north      
D. have       
D. When       
D. has been                          
D. our        
D. than       
D. find      
D. at         
D. 不填       
D. however    
填空题