A. Common Secondary Lung Cancers B. The Advantages Brought about by Routine Chest Checkup C. Relationship Between Mortality Rate

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问题 A. Common Secondary Lung Cancers
B. The Advantages Brought about by Routine Chest Checkup
C. Relationship Between Mortality Rate from Lung Cancer and Smoking Habits
D. Operable and Inoperable Lung Cancers
E  The Increasing Death Rate from Lung Cancer and Possible Causes
F  An Ordinary Type of Lung Cancer
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

选项

答案D

解析 第三段第二句说有的人因怕X射线辐射而不敢进行胸透,但作者在后面又说明了胸透对早期发现肺癌的益处以及熟练的操作人员不会给患者带来多大危害,故不像人们想象的那样可怕。
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