一条神经干中许多纤维在同时传导兴奋时互不干扰，其主要原因是 - 查题网

>> 成人高等教育 / 生理学（临床）

成人高等教育 / 生理学（临床）

正确率：100%

一条神经干中许多纤维在同时传导兴奋时互不干扰，其主要原因是

A、
髓鞘对电流的绝缘作用
B、
细胞膜的膜电阻很大
C、
细胞外液对电流的短路作用
D、
生物电很微弱，干扰也很微弱
E、
动作电位只沿膜内侧传向远处

积分

生理学（临床）

参考答案：

点击查看答案

佳题速递：

中国古代哲学家荀子说：“天行有常，不为尧存，不为桀亡。”这是一种( )(A) 宿命论观点 (B) 唯意志论观点 (C) 机械唯物论观点 (D) 朴素唯物论观点马克思主义基本原理

1938年5月至6月间，毛泽东发表《论持久战》的演讲，总结抗战十个月来的经验，集中全党智慧，系统地阐明了论持久战的总方针。《论持久战》的主要内容有A、强调“兵民是胜利之本”B、批驳了亡国论、速胜论C、提出坚持抗战、团结、进步，反对妥协、分裂、倒退D、科学地与预测了抗日战争发展的三个阶段中国近现代史纲要

物镜光心与十字丝交点的连线，称为（） (A)水准管轴(B)视准轴(C)圆水准器轴(D)竖轴[参考答案：B] 分值：4得分：分系统自动批改于2020年8月25日 1点06分建筑工程测量

x、y、z被定义为int型变量，若从键盘给x、y、z输入数据，正确的输入语句是( )。 C语言程序设计

黄金市场按交易类型和交易方式可分为(A) 一级市场和二级市场 (B) 直接市场和间接市场 (C) 现货市场和期货市场 (D) 官方市场和黑市市场学

题型描述: 阅读理解Sixteen-year-old Maria was waiting in line at the airport in Santo Domingo. She was leaving her native country to join her sister in the United States. She spoke English very well. Though she was very happy she could go abroad, she was feeling sad at leaving her family and friends. As she was thinking all about this, she suddenly heard the airline employee asking her to pick up her luggage and put it on the scales (称). Maria pulled and pulled. The bag was too heavy and she just couldnˊt lift it up. The man behind her got very impatient. He, too, was waiting to check in his luggage."Whatˊs wrong with this girl?" He said, "Why doesnˊt she hurry up?" He moved forward and placed his bag on the counter, hoping to check in first. He was in a hurry to get a good seat. Maria was very angry, but she was very polite. And in her best English she said, "Why are you so upset? There are enough seats for everyone on the plane. If you are in such a hurry, why canˊt you give me a hand with my luggage?" The man was surprised to hear Maria speak English. He quickly picked up her luggage and stepped back. Everyone was looking at him with disapproval.1、 "Everyone was looking at him with disapproval."This sentence means that the people around felt _ _ _ _ . A. worried about the man B. sorry for Mariaˊs manners C. worried about Maria D. sorry for the manˊs manners 2、 Mariaˊs story happened _ _ _ _ _ _ _ A. before she left the USA B. when she was leaving America C. when she arrived at the airport D. on her way back to Santo Domingo 3、 The author mentioned Mariaˊs age at the beginning of the story in order to show that _ _ _ _ _ . A. she was young but behaved properly B. it was not good that nobody offered to help her C. everyone around her was wrong D. she would not have left home alone 4、 You believe that the work of the airline employee mentioned in the story is to _ _ _ _ _ _ at the airport. A. help carry peopleˊs luggage B. check peopleˊs luggage C. ask people to pick up the luggage D. take care of peopleˊs luggage 5、 "Why are you so upset?" Maria said to the man. She wanted to tell him that he should not be _ _ _ _ _ . A. sad and angry B. unhappy and worried C. sad and sorry D. surprised and worried统考英语A