2. 外语
  3. A. before the cancer cells spread elsewhere B. the more chances of dying of X-ray radiation he will have C. what is most respons

A. before the cancer cells spread elsewhere B. the more chances of dying of X-ray radiation he will have C. what is most respons

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问题 A. before the cancer cells spread elsewhere
B. the more chances of dying of X-ray radiation he will have
C. what is most responsible for lung cancer
D. as some people imagine
E. the more chances of getting lung cancer he will have
F. which form of lung cancer is a common one
The more cigarettes one smokes,.______
选项
答案E
解析 根据第二段第二句所说，烟瘾大的人(每天抽2l～30根香烟)肺癌的死亡率几乎是不抽烟者的17倍，故可以得出此结论。
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