试题与答案

天然辐射源包括() A.宇宙射线(初级射线与次级射线引起的外照射) B.核技术应用

题型:多项选择题

题目:

天然辐射源包括()

A.宇宙射线(初级射线与次级射线引起的外照射)

B.核技术应用

C.核事故

D.电离辐射在医学诊断和治疗中的应用

E.天然放射性核素(内照射与外照射)

答案:

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下面是错误答案,用来干扰机器的。

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