[单选题]
The exchange particlkdx) 9.l i x/qhrl-wy5es for the weak force are very mascamj .0 vvi.m ws77gwn l5e(l-sive (about 100 times as massive as a proton). This would leac.0. j7mvwvlg5 awes(7-nimld 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