生产经营单位采用新工艺、()或者使用新设备,必须了解、掌握其安全技术特性,采取有效的

题型:单项选择题

问题:

生产经营单位采用新工艺、()或者使用新设备,必须了解、掌握其安全技术特性,采取有效的安全防护措施,并对从业人员进行专门的安全生产教育和培训。

A、新技术、新材料

B、新流程、新材料

C、新技术、新原料

考点:裂解裂化工艺考试裂解裂化工艺考试题库
题型:单项选择题
下列说法:①三角形的高、中线、角平分线都是线段;②内错角相等;③坐标平面内的点与有序数对是一一对应;④因为∠1=∠2,∠2=∠3,所以∠1=∠3。其中正确的是(   )

A.①③④
B.①②③④
C.①②④
D.③④
题型:单项选择题

速度型压缩机分为()和轴流式。

题型:单项选择题
完形填空。
     My grandmother became a widow in 1970. Shortly after that, we went to the   1   shelter to pick out a dog
to keep her   2  . Grandma decided on a little dog with a reddish-brown spot above each eye   3   these spots,
the dog was named Penny.
     Grandma and Penny quickly became very   4   to each other, but that attachment grew much stronger about
three years later   5   Grandma had a stroke (中风). Grandma could no longer   6  , so when she came home
from the hospital, she and Penny were   7   companions.
     After her stroke, it became a real   8   for Grandma to let Penny in and out because   9   was at the bottom
of a flight of stairs. So a mechanism (机械装置) using a rope and pulley (滑轮) was  10  from the door to a
handle at the top of the stairs. Grandma just had to pull the handle to open arid close the door. If the store was 
 11  Penny's favorite dog food, Grandma would make one of us  12  Penny browned beef with potatoes in it.
I can remember  13  my grandmother by saying that she loved that dog better than she loved her family.
     As the years passed, it was not  14  for Grandma and Penny to separate each other. If Grandma went to take
her nap (打盹), Penny stayed by her side until she  15 . As Penny aged, she could no longer jump up on the bed,
so she  16  on the rug (垫子) beside the bed. If Grandma went into the  17 , Penny would walk along beside her,
wait outside the door and accompany her  18  to the bed or chair. Grandma never went anywhere without her 
 19  companion by her side.
     The time came when both my grandmother's and Penny's  20  were failing fast. After fifteen years of loving
companionship, Grandma and Penny passed away within a few hours of each other.
( )1.A. animal                  
( )2.A. business            
( )3.A. In spite of            
( )4.A. linked              
( )5.A. before               
( )6.A. think                  
( )7.A. contrary              
( )8.A. problem             
( )9.A. the door               
( )10.A. repaired            
( )11.A. out of               
( )12.A. show                   
( )13.A. drawing attention to
( )14.A. necessary             
( )15.A. recovered           
( )16.A. rolled                 
( )17.A. kitchen             
( )18.A. back                   
( )19.A. splendid            
( )20.A. smell                
B. toy          
B. firm        
B. Because of   
B. fastened     
B. while        
B. speak        
B. content      
B. question     
B. Grandma      
B. fixed        
B. ahead of     
B. hand         
B. making use of    
B. possible     
B. awoke        
B. stood        
B. bedroom      
B. up           
B. remote       
B. health      
C. fish             
C. company          
C. Instead of        
C. attached          
C. until             
C. work              
C. confident         
C. practice          
C. the window        
C. bought           
C. away from        
C. buy              
C. breaking away from   
C. important         
C. slept             
C. waited            
C. living-room       
C. off               
C. faithful         
C. habit             
D. bird         
D. friend       
D. In front of   
D. tied         
D. when         
D. walk         
D. constant     
D. rule         
D. Penny        
D. loaded       
D. apart from   
D. cook                   
D. making fun of 
D. convenient   
D. screamed     
D. lay          
D. bathroom     
D. down         
D. legal         
D. living       
题型:单项选择题

按照环境空气质量功能区分类规定,农村地区属于()。

A、一类区

B、二类区

C、三类区

D、四类区

题型:单项选择题

经营性房地产项目的成本收益率等于()乘以100%。

A.开发商利润/总开发成本

B.正常经营年份的净经营收入/总开发成本

C.开发商利润/总开发价值

D.正常经营年份的经营收入/总开发成本

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