如何防止埋钻?

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问题:

如何防止埋钻?

考点:钻探工考试井下钻探工井下钻探工题库
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“每一次较大的农民起义和农民战争的结果,都打击了当时的封建统治,因而也就多少推动了社会生产力的发展。”“在中国封建社会里,只有这种农民的阶级斗争、农民的起义和农民的战争。才是历史发展的真正动力。”毛 * * 对中国古代农民战争的论述主要运用的是

A.文明史观

B.阶级斗争史观

C.全球史观

D.现代化史观

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符合营养性巨幼细胞性贫血神经系统表现的是()

A.智力及动作发育落后有倒退现象

B.兴奋、多动

C.注意力不集中,记忆力减退

D.腱反射减弱

E.感觉异常

题型:问答题 简答题

关于臀位,描述错误的是()。

A.胎体纵轴与母体纵轴平行

B.最常见的胎位异常

C.胎心音在母体脐上听得最清楚

D.由于臀大于头,后出头较容易

E.混合臀先露是指胎儿双髋关节及膝关节均屈曲

题型:问答题 简答题

下列关于横断面调查的论述哪项是错误的()

A.横断面调查是分析流行病学研究的基础,所以它是分析流行病学研究方法

B.横断面调查属于观察法

C.横断面调查可以为卫生决策提供依据

D.横断面调查时因素与疾病同时存在,可以一起调查

E.横断面调查可以描述疾病分布

题型:问答题 简答题
完形填空。
     During a recent holiday I visited Dusseldorf, a city in the former West Germany. The nine-day trip left a
deep impression   1   me. I arrived at Dusseldorf airport at 7 pm. It was already   2   outside. The first thing
I needed to do was to find a place to   3  . I decided to telephone the youth hotel. But to use the phone I needed
some   4  , I asked a lady for help. To my   5  , she gave me three coins to use. But all the phones in the   6   
needed phone cards. And phone cards could only be bought at post offices during the   7  . I was   8   I would
not be able to call the hotel. An old gentleman helped me. He couldn't speak English   9   understand that I needed
to  10  a phone call. He showed me where the phone was and inserted  11  phone card. I called the youth hotel
and found a place to stay that night.
     The  12  of the German people made me feel that I was not  13  my hometown and my first day in Germany
wasn't as  14  as I expected. Whenever I went, I asked people for  15 . It surprised me that  16  every young
German could speak English fluently. Older Germans couldn't speak English very well, but they would try to help
me  17  they could. One middle-aged man I asked for directions even  18  me to the place I was looking for.
     My  19  in Germany totally changed my impression of Germans. Now I think the people couldn't be more 
 20 .
( )1.A. on         
( )2.A. late       
( )3.A. visit      
( )4.A. cards      
( )5.A. joy        
( )6.A. hotel      
( )7.A. night      
( )8.A. afraid     
( )9.A. or         
( )10.A. make      
( )11.A. another   
( )12.A. use       
( )13.A. really    
( )14.A. interesting
( )15.A. direction 
( )16.A. almost    
( )17.A. whenever  
( )18.A. drove     
( )19.A. experience
( )20.A. friendly  
B. for           
B. dark          
B. eat           
B. information   
B. disappointment
B. airport       
B. daytime       
B. sure          
B. but           
B. have          
B. a             
B. success       
B. nearly out of 
B. good          
B. distance      
B. even          
B. whatever      
B. reached       
B. victory       
B. unfriendly    
C. to         
C. light      
C. stay       
C. money      
C. emotion    
C. city       
C. trip       
C. glad       
C. and        
C. do         
C. my         
C. care       
C. far from   
C. bad        
C. travel     
C. only       
C. wherever   
C. moved      
C. visit      
C. cold-hearted 
D. about   
D. early   
D. keep    
D. coins   
D. surprise
D. pavement
D. rush-hour                   
D. eager   
D. so      
D. answer  
D. his     
D. kindness
D. close to
D. busy    
D. serve   
D. already 
D. however 
D. came    
D. memory  
D. valuable
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