如图为实验装置,下列说法正确的是( ) A.该装置只能用于制取和收集氢气 B.

题型:选择题

问题:

如图为实验装置,下列说法正确的是(  )

A.该装置只能用于制取和收集氢气

B.该装置只能用于制取和收集二氧化碳

C.该装置可用于制取和收集氧气和二氧化碳

D.该装置可用于制取和收集氢气、氧气和二氧化碳

考点:实验室制取和收集气体的思路
题型:选择题
完形填空。
     I was tired. I had been studying English for 8 years, but my spoken English was still terrible. I went to
English school every night. I read different textbooks and learned the grammar rules    1    them every
day. But during the eight years, I hadn't got any    2    at all! Being tired of school, I searched (搜索) the
Internet for "Learn English" one night. Then I found a    3    English learning system (系统). Seven days
later I started using the system to learn English. My life    4    from then on. I used the system every day.
I was    5    to find that learning English in this way was so easy and interesting. No boring grammar rules.
The articles were interesting and the stories were very funny. Then something amazing happened. One
day I    6    an American man named James in a coffee shop. Without thinking, I started to    7    him. My
English words came out automatically (无意识地). It was hard for me to believe it. I could speak English
so easily. I didn't feel any    8    or worry. James understood my ideas and feelings. We talked for two
hours without    9   . Then we exchanged e-mails and Skype IDs. We decided to talk to each other on
the Internet every week. My English has   10   greatly now. I think there are many ways of learning English
for us to use. You should stop using a way that doesn't work and find out what is helpful to you.
( )1. A. by      
( )2. A. message  
( )3. A. boring  
( )4. A. changed  
( )5. A. afraid  
( )6. A. met      
( )7. A. wait for
( )8. A. interest
( )9. A. saying  
( )10. A. missed  
B. in        
B. mistake    
B. common    
B. started    
B. angry      
B. beat      
B. talk with  
B. hobby      
B. predicting
B. destroyed  
C. for          
C. progress      
C. disappointing
C. solved        
C. crazy        
C. helped        
C. laugh at      
C. stress        
C. stopping      
C. influenced    
D. about        
D. challenge    
D. perfect      
D. impressed    
D. surprised    
D. forgot        
D. think of      
D. idea          
D. understanding
D. improved      
题型:选择题

假神的临床意义为()

A.正气不足,神气不旺

B.正气未伤,精气未衰

C.精亏气损神衰

D.精充气足神旺

E.阴阳离绝的危候

题型:选择题

焦耳-楞次定律的内容是什么?

题型:选择题

阀门在泵站中有什么作用.

题型:选择题

患者,男,32岁。素日嗜酒,外出着凉后,始见时时振寒,发热,继而壮热汗出,烦躁不宁,咳嗽气急,咳吐腥臭浊痰,胸满作痛,口干苦,便秘,舌红苔黄腻,脉滑数。治疗应首选:()

A.清金化痰汤

B.如金解毒散

C.桑白皮汤

D.加味泻白散

E.《济生》桔梗汤

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