单项选择题
A.1MeVB.10MeVC.100MeVD.1GeV
A.100-106B.101-307C.102-108D.103-109
A.光核B.辐射俘获C.裂变D.非弹性散射
A.20MeVB.30MeVC.40MeVD.50MeV
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