本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 通用国际物理
[单选题]
One reason a photon could notf9apybty* p e1k3me*zw q/(9c cq /m af e;np21 jxq 8ypot(,lsfg:ce9,reate an odd number of electrons and positrons is that suxjp28l:t9; 1gqfcn /feape,o,qyms( ch a process would
A. not conserve charge.
B. not conserve energy.
C. require photon energies that are not attainable.
D. result in the creation of mass.
参考答案: A
本题详细解析:
暂无
| 
