A.1H和2H B.1H和3H C.2H和3H D.1H、2H、3H E.3H和32P
A.11C B.12C C.13N D.14C E.15O
A.131I和131Cs B.131I和125I C.131I和18F D.99Tc和99mTc E.99Tc和18F