单项选择题
A.γ射线 B.β射线 C.α射线 D.俄歇电子 E.内转换电子
A.37~74MBq B.74~111GBq C.111~222MBq D.222~300GBq E.370~740MBq
A.131I B.32P C.89Sr D.51Cr E.186Re
A.37~74MBq B.185~370MBq C.370~555MBq D.555~925MBq E.925~1110MBq
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