题目内容

某学者在某地进行吸烟与肺癌关系的研究，结果显示，该地人群肺癌年死亡率为0．56％0，吸烟与不吸烟者的肺癌年死亡率为0．96‰和0．07‰。

A. 92.7％
B. 0.07
C. 13.71
D. 0.71
E. 8.00

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