The following are descriptions of the excitatory conduction characteristics of nerve fibers. Which one is correct?

A、One-wayconductioncanonlybeconductedfromthecellbodytotheperiphery.;
B、Thefibersinthenervetrunkdonotinterferewitheachother.;
C、Aslongasthestructureiscomplete,itcanconductexcitationnormally.;
D、Itisnotaffectedbythechangeofinternalenvironmentalfactors.