问题 问答题 简答题

马尔科夫链的基本特征是什么?

答案

参考答案:

(1)景观的变化是一种随机过程而不是确定性过程,即景观要素的转化是一种概率事件,可用转移概率刻画。

(2)景观空间格局由一个阶段向另一阶段的转移或转化只依赖于目前的状况而与先前状况无关。

(3)景观要素之间的转移概率保持不变。

完形填空
完形填空。
     One day last year I went to a small but beautiful lake. The lake   1   before me, blue and peaceful. I sat down by
the side of the lake,   2   my shoes and socks, and put my feet into the water. It was cold, like ice. After a moment
I bent over (弯下身子) and got some of the   3   onto my hot face. I could see   4   in the water looking at me like a
stranger. How   5   I was after the long journey. I needed a good rest. Moreover, it was a very beautiful place   6   I
decided to stay here for a few days, out of noise and busy work. While I tried to make a plan for it, I found a small
   7   on the far side of the lake with some smoke coming from its roof. As I watched, a man came out of the house
and down to a little boat at the lakeside. He got into it and began to   8   towards my side. I could not see his face
at first. He went on moving   9   the lake, and when he got close to me, he raised a hand in a friendly way of greeting.
I saw his face   10   at that moment. It was Johnson-one of my old friends!
( )1. A. fell      
( )2. A. burned off
( )3. A. water    
( )4. A. yourself  
( )5. A. tired    
( )6. A. so        
( )7. A. boat      
( )8. A. run      
( )9. A. through  
( )10. A. quietly  
B. lay        
B. sold out  
B. ice        
B. oneself    
B. thirsty    
B. if        
B. house      
B. jump      
B. to        
B. clearly    
C. rose      
C. took off  
C. air        
C. itself    
C. amazed    
C. though    
C. hill      
C. move      
C. above      
C. differently
D. stopped              
D. put on              
D. sand                
D. myself              
D. pushy                
D. because              
D. theater              
D. walk                
D. across              
D. strongly            
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