本题目来源于试卷: Physics Unit32: Elementary Particles,类别为 国际高中通用物理
[单选题]
The exchange particl yxp6xc 40r(o7fpur7bes +cfa, * z/ehhzfor the weak force are very massive (about 100 times as massive as a proton). T+hfchz/e a*z ,his would lead one to expect that the weak force would
A. act over a very long range.
B. act over a very short range.
C. only act on very massive particles.
D. be transmitted at the speed of light.
参考答案: B
本题详细解析:
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