问题题干答案解析相关问题热门问题最新问题

问题详情

心交感神经兴奋使自律细胞自律性升高的主要作用机制是( )

A、使阈电位水平上移

B、动作电位0期去极速度加快

C、最大复极电位绝对值增大

D、降低肌浆网摄取Ca<sup>2+</sup> 的速度

E、加强I<sub>f</sub>内向电流,使4期自动除极速度加快

时间：2021-07-17 23:16 关键词：护理学专升本生理学期末成绩低于60分期末考试

答案解析

E

相关问题

boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
（）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．