【单选题】
在以太网标准中,为了检测冲突而规定的最小帧长是( )字节.___
A. 1518
B. 40
C. 64
D. 1500
E.
F.
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答案
C
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Television, as a source of entertainment, is ________.___
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【单选题】
Why are some people against TV?___
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B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
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【单选题】
According to the passage, whether TV is good or not depends on ___________.___
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【单选题】
What regulation was issued by New York State concerning beverage containers?___
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B. Throwaways should be collected by the state for recycling.
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D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
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【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
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【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
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D. landfills will still be widely used for waste disposal
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【单选题】
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In the eyes of the author, a successful engineering student is expected ______________.___
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The author's experience shows that he was ________.___
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What made the Ouchidas' new house a horrible dream?___
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The underlined word "accentuate" (Para. 3) most probably means "________".___
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Why were cracks in old houses not a big concern?___
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【单选题】
Strategic times are best for us to ___________.___
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Which of the following could be used as a motivation to do our assignments?___
A. Remembering our urgent tasks.      
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【单选题】
What can help us to keep refreshed throughout the day?___
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【单选题】
Which of the following could be the best title for this article?___
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B. tell the nature of life learning
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According to the author, the schooling framework often ________.___
A. produces slow students with poor memories
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【单选题】
Life learners recognize that learning will not be difficult if they are _________.___
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【单选题】
According to the author, life learning ________.___
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【单选题】
Through life learning, children ________.___
A. will grow without the assistance from parents
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【单选题】
A good title for this passage is __________.___
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B. Good Health    
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D. Work and Rest
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The word drowsy in the last paragraph means __________.___
A. sick                   
B. stand up       
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D. a little sleepy
【单选题】
This passage suggests that not getting enough sleep might make you ___________.___
A. dream more often     
B. have poor health   
C. nervous                 
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【单选题】
During REM,  ___________ .___
A. your eyes move quickly    
B. you dream  
C. you are restless   
D. both A and B
【单选题】
The average number of hours of sleep that an adult needs is __________.___
A. approximately six hours    
B. around ten hours    
C. about eight hours      
D. not stated here  
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4、Sjogren syndrome___