下列说法正确的是() A.常温常压下,16g14CH4所含中子数为8NA B.等

题型:选择题

问题:

下列说法正确的是( )                                             

A.常温常压下,16g14CH4所含中子数为8NA

B.等物质的量浓度的HCl溶液与乙酸溶液中的c(H+)相等

C.乙酸分子与甲酸甲酯分子中的共价健数相等

D.等温等压下,3molC2H2(g)和1molC6H6(g)的密度相等

考点:构成物质的粒子—分子、原子、离子元素周期律
题型:选择题

收缩中晚期喀喇音可见于下列哪种疾病

A.主动脉瓣狭窄

B.二尖瓣脱垂

C.室间隔缺损

D.肺动脉瓣狭窄

E.主动脉瓣关闭不全

题型:选择题

接种乙肝疫苗会出现()

A.HBsAg阳性

B.HBeAg阳性

C.HBeAb阳性

D.HBcAb阳性

E.HBsAb阳性

题型:选择题

甲乙丙丁4人组成一个运输有限合伙企业,合伙协议规定甲、乙为普通合伙人,丙、丁为有限合伙人。某日,丁为合伙企业运送石材,路遇法院拍卖房屋,丁想替合伙企业竞买该房,于是以合伙企业的名义将石材质押给徐某,借得20万元,竞买了房子。徐某的债权若得不到实现,应当向谁主张权利( )

A.应当要求丁承担清偿责任

B.应当要求甲、乙、丙、丁承担连带清偿责任

C.应当要求甲、乙承担连带清偿责任

D.应当要求甲、乙、丁承担连带清偿责任

题型:选择题
完形填空
     Not long ago I wasn't doing very well in exams and I was full of disappointment and  __1__ thinking.
While on the Internet,I met many new friends, but one in particular __2__.His nickname is Colorful Day
and we __3__ on the Web.He told me: he lost his __4__ at age 15, and felt the whole world had closed
its door to him.
     He was __5__ so fast that I couldn't believe he was blind! But he continued to __6__: Five years ago, I realized it was time to change my life.I had read about Helen Keller and understood her life and __7__.
So I developed a website about her life __8__ mine called Three Days to See.
     I visited his website which was well produced and vividly __9__.
     I asked, "How did you   10   to build such a website?" He said,"Owing to the new technology, I can
use software specially   11   for the blind.    12   I point the cursor(光标), it will just read it out to me.   
We can do far more things and   13   more information than we could before."
     I then asked, "Didn't you have great difficulty with it?"
     He hesitated and then began his   14   with a smiling face," Yes, but I have faith in myself to   15   my 
 colorful day. And modern technology gives me this   16   to do it."
     His    17   attitude towards life made me believe that our destiny offers not the cup of despair,   18   
the chalice (大杯) of opportunity. I returned to my lessons, and this time with a smile on my face and
with   19   of a colorful future.
     The Internet, which opened to me to   20   different lives and cultures, has a charm you couldn't find
in another wise nonvirtual world.
( )1. A. positive      
( )2. A. turned out    
( )3. A. argued        
( )4. A. eyesight      
( )5. A. speaking      
( )6. A. follow        
( )7. A. friendship    
( )8. A. as well as    
( )9. A. offered      
( )10. A. try          
( )11. A. designed    
( )12. A. Whether      
( )13. A. send        
( )14. A. webpage      
( )15. A. create      
( )16. A. moment      
( )17. A. hopeful      
( )18. A. but          
( )19. A. eagerness    
( )20. A. touch        
B. active            
B. stood out        
B. interviewed      
B. hearing          
B. saying            
B. write            
B. marriage          
B. such as          
B. presented        
B. come              
B. distinguished    
B. However          
B. access            
B. speech            
B. produce          
B. privilege        
B. disappointed      
B. and              
B. expectations      
B. feel             
C. negative      
C. came out      
C. told          
C. courage      
C. typing        
C. read          
C. happiness    
C. like          
C. delivered    
C. work          
C. planned      
C. Whatever      
C. communicate  
C. words        
C. recognize    
C. opportunity  
C. pleasant      
C. so            
C. richness      
C. experience              
D. instructive    
D. looked out      
D. chatted        
D. confident      
D. spelling        
D. copy            
D. hardships      
D. as              
D. found          
D. manage          
D. imagined        
D. Wherever        
D. exchange        
D. opinions        
D. organize        
D. occasion        
D. optimistic      
D. then            
D. nervousness    
D. suffer          
题型:选择题

引起急性会厌炎的常见疾病包括()

A.细菌感染

B.吸入有害气体

C.变态反应

D.放射线损伤

E.创伤

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