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    (   ) 10. ―How many children do you have?

    ―Two,a daughter and a son,and        of them are in college.

       A. all   B. both   C. neither   D. either

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    The Norwegian Institute of Public Health and theUK's Health Protection Agency both reported some studies last year. They said that there was no evidence found between mobile phone radiation (辐射) and cancer.

    However,many heavy users of mobile phones often complain of headaches and even feeling sick. Last October,a court case inItalysaid that heavy mobile phone usage had caused brain cancer in one man. He had used a mobile phone up to six hours a day for 12 years.

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    (   ) 41. What does this in the first paragraph refer to (指代) ?

       A. A large rise in mobile phone users.

       B. Mobile phones could lead to cancer.

       C. Worry about possible health risks.

       D. It is too early to reach conclusions.


    (   ) 42. The first two paragraphs mainly tell us that         .

       A. the number of mobile phone users has a large rise over the last 10 years

       B. many people are worried about possible health risks from mobile phones

       C. scientists have been thinking that mobile phones could lead to cancer

       D. it is not clear whether mobile phones radiation can lead to cancer directly

    (   ) 43. According to the third and fourth paragraphs,we may know that         .

       A. we'd better use mobile phones less often

       B. we don't need to worry about mobile phones

       C. there are strong evidences that mobile phones cause cancer

       D. mobile phones have been widely used for half a century

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       B. Because there aren't many mobile phone users with cancers.

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       D. Because link between mobile phone radiation and cancer has not been found

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       B. Children take in the same radiation as adults.

       C. Mobile phones are a major risk for children.

       D. Kids have thinner skulls than adults.


      

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