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  3. Prevention is always preferable to a cure, and while much of the data are still preliminary, a growing body of evidence suggests

Prevention is always preferable to a cure, and while much of the data are still preliminary, a growing body of evidence suggests

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问题     Prevention is always preferable to a cure, and while much of the data are still preliminary, a growing body of evidence suggests【C1】______Ihe local green market may be a rich source of anticancer agents.【C2】______certain fruits and vegetables seem to have powerful tumor-fighting properties that researchers are【C3】______beginning to appreciate—and to study. A sampling of the current crop of findings:
    Scientists have long known that men who eat cooked tomato products such as pasta sauces【C4】______to have lower rates of prostate cancer. Until last week, however, the data were anything【C5】______conclusive. A study reported at last week’s meeting of the American Association for Cancer Research shows that daily doses of lycopene, an antioxidant that【C6】______tomatoes and gives them their red color, may not only prevent prostate cancer but【C7】______existing tumors as well.
    Previous studies showed that women who eat soy products【C8】______tofu and soy milk are less likely to develop breast cancer. But it was never clear why. Now a small study of two dozen women may point to an answer: soy seems to keep circulating levels of estrogen low,【C9】______inhibits breast cells【C10】______proliferating.
【C9】
选项 A、that
B、which
C、what
D、where
答案B
解析 非限定性定语从句要用which。
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