单项选择题
A.131I B.32P C.89Sr D.51Cr E.186Re
A.硫化锝胶体 B.磷酸铬胶体 C.植酸钠胶体 D.胶体198Au E.锝锡胶体
A.37~74MBq B.37~74GBq C.370~555MBq D.555~925GBq E.925~1110MBq
A.37~74MBq B.37~74GBq C.370~555MBq D.555~740GBq E.740~1110MBq
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