Physics Unit30: Nuclear Physics and Radioactivity (id: 459ef54b9)

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本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics

[单选题]
A gamma ray is also known 1tuphiql+ /aueu.mq5uk 7g90 aq) (w :ti(6 zzs)dbssws

A. an electron.
B. a positron.
C. a helium nucleus.
D. a photon.


参考答案:  D


本题详细解析: 暂无