[单选题]
The exchange particlipom( 54k 5r .viesqz2es for the we87 q/d/daf pacak force are very massive (about 100 times as massive as a proton). This wou/7capddaf /8 qld 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.
Post time 2024-1-22 02:15:01