ACCorDing to thE DisCussion, whAt ForCEs BElong to ACtion-At-A-DistAnCE ForCEs
A、grAvitAtionAl ForCEs.
B、mAgnEtiC ForCEs.
C、FriCtionAl ForCEs.
D、ElECtriC ForCEs.
E、tEnsionAl ForCEs.