Physics Unit31: Nuclear Energy and Radiation (id: e9fcc34d4)

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本题目来源于试卷: Physics Unit31: Nuclear Energy and Radiation，类别为 Generic Physics

[单选题]
A chain reaction can o 3aah jf9yb8g.cltdm ; sue y pk-,f6o0razj*61cur

A. in any uranium core.
B. when critical mass is reached.
C. in the center of the Sun.
D. when the coolant is too hot.


参考答案:  B


本题详细解析: 暂无