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题目
题型:同步题难度:来源:
The acid rain is one of the chain reactions that ______ by environmental pollution .    [     ]

A. is come about    
B. is caused  
C. are given birth  
D. are brought about


答案
D
核心考点
试题【The acid rain is one of the chain reactions that ______ by environmental polluti】;主要考察你对动词及动词短语辨析等知识点的理解。[详细]
举一反三
The single invention of the computer _______ many new professions.    [     ]

A. gave a birth to  
B. gave births to  
C. gave birth to  
D. gave birth for

题型:同步题难度:| 查看答案
The doctor told me that I would recover from my illness if I ______ a healthy diet.[     ]
A. got through        
B. fit in            
C. stuck to            
D. kept up
题型:河北省期末题难度:| 查看答案
_______  cars when you cross the busy street. Which of the following is not OK?    [     ]

A. Watch out for  
B. Look out for    
C. Watch over    
D. Be careful of

题型:同步题难度:| 查看答案
Be careful when you open an unknown document. It might contain the deadly virus which
could entirely ______ your computer system in a minute.    [     ]

A. break down    
B. crash    
C. block out  
D. dissolve

题型:同步题难度:| 查看答案
---My goodness! I failed again in the computer test.   
---________. The world is not at an end.    [     ]

A. Look up    
B. Pick up    
C. Cheer up    
D. Keep up

题型:同步题难度:| 查看答案
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