单选题子，则产生的新核含有质子和中子的数目分别为( )。A 28和15B 27和14C 15和13D 14和13
单选题
子，则产生的新核含有质子和中子的数目分别为( )。
A
28和15
B
27和14
C
15和13
D
14和13
参考解析
解析：
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