多个阈下刺激作用于细胞产生的局部反应总合后使膜电位去极达 水平,可引发动作电位。
查看答案
横管和终池的膜在三联管处是相连通的。
A. 对
B. 错
在强直收缩中,骨骼肌的动作电位会发生叠加或总和。
A. 对
B. 错
In the coming days, the committee willprizes in chemistry, literature, economics and peace.
A. say
B. talk
C. announce
D. speak
The old man passed on his knowledge of traditional Chinese medicine to the younger.
A. generation
B. generate
C. general
D. generally