本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
Compared to the masses of its sepab8rd8e b(kgn.wp6l ox,.pw)4 djsr lics.-g/rate protons.+m 3ggxocq ;r and neutrons, the total mass of a stable nucleus is alway g.+g xo3c;mrqs
A. less.
B. the same.
C. greater.
D. zero.
参考答案: A
本题详细解析:
暂无
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Post time 2024-1-22 01:01:29