A.子核
B.α衰变
C.母核
D.β-衰变
E.衰变能
[单选题]A.低浓度氧疗B.无创机械通气C.有创机械通气D.高浓度氧疗E.中浓度氧疗
[单选题]A.1/3B.2/3C.1D.4/3
[单选题]A.0B.aC.1D.以上都不对
[单选题]A.B.C.D.
[单选题]A.-1B.0.1C.1D.0.5
[单选题]A.10B.12C.14D.16
[单选题]A.子核B.α衰变C.母核D.β-衰变E.衰变能