题目内容:
Paragraph5__________. A.Harmscreeningmaydotoayoungerwoman
B.Smallriskofinducingcancersfromradiationmodels
C.Investigatingtheeffectofscreening
D.Effectspredictedbytwoaredifferent
E.Treatmentofcancers
F.Factorsthattriggercancers
参考答案:
答案解析: