[单选题]
The grand unified theoryp-q/7ut 14m squ b9yoy (GUT)5npod/s l,s* ojjm/qw, 88v;es:lk rr is a sought-after model that would unify three of jj l:ss*8;r,qlo/vwr8s /domke n , p5the four forces of nature. Which force is the one it would not include?
A. gravitational
B. strong
C. weak
D. electromagnetic
Post time 2024-1-22 02:15:01