知识贝壳
知识贝壳
所属栏目：英汉双解生物学
The transitory change inelectrical potential that occurs across themembrane of a nerve or muscle fiber duringthe passage of a nervous impulse. The degreeof change is independent of the strength ofthe impulse;it either occurs or does not (seeall-or-none).I ......（本文共 1114 字 ） [阅读本文] >>