A. The first test. B. Smokers can’t do complex jobs well. C. Smokers are easily to get cancer. D. The fourth test. E.

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问题 A. The first test.     
B. Smokers can’t do complex jobs well.
C. Smokers are easily to get cancer.     
D. The fourth test.
E. Scientists decided to find out whether smoke could help to think.   
F. Non-smokers response more aquickly than smokers.
A. computer screen     
B. memory
C. vegetable     
D. mental capacity
E. nicotine   
F. speed

选项

答案E

解析 第三段末句。
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