问题 填空题

导致排卵的内分泌调节为排卵前血________峰的出现,其机制________高峰对垂体、下丘脑的正反馈调节作用。

答案

参考答案:LH/FSH;雌二醇

完形填空
完形填空
       In 1996, Subaru sailed (航海) alone   1   the Pacific Ocean (太平洋). Many other people did this
before Subaru, but he was special. At age 14, he was the   2   person to sail across the Pacific by himself.
       Subaru left Tokyo on July 22, 1996. In the boat, he had food and water for a   3   trip. He also had a
radio and other modern machines for sailing.
       The   4  of the trip went very well. Subaru often talked to his parents   5  radio. He didn't have any   6   with his boat. Then, on August 11, the engine (发动机) in his boat stopped. This made   7   difficult to go on with his trip. Then, five days later, his radio stopped. Now he was out of contact (联系) with anyone.And
he was _8_ 2,770 miles away from San Francisco.
       By the end of August, many people believed that Subaru was   9_ .His parents expected him to arrive
in San Francisco on September 3, but he didn't. Then, on September 13, Subaru sailed into San Francisco. After 55 days in his boat, his trip was finally   10    .
( )1. A. cross      
( )2. A. smallest  
( )3. A. two months
( )4. A. first      
( )5. A. on        
( )6. A. questions  
( )7. A. him        
( )8. A. already    
( )9. A. dying      
( )10. A. end      
B. across      
B. biggest      
B. two month's
B. beginning    
B. over        
B. problems    
B. it          
B. ever        
B. successful  
B. finish                      
C. through    
C. youngest  
C. two-month  
C. ending    
C. from      
C. difficult  
C. that      
C. still      
C. lost      
C. all        
D. over            
D. shortest        
D. two-months      
D. process          
D. by              
D. wrong            
D. it's            
D. only            
D. disappeared      
D. over            
选择题