A.226鐳 B.137銫 C.59鈷 D.192依 E.125碘
A.0.4~2Gy/h B.1~3Gy/h C.2~8Gy/h D.8~12Gy/h E.≥12Gy/h
A.10% B.15% C.20% D.25% E.30%