题目

人体生命活动的正常进行主要是在神经系统的调节作用下完成的。下列说法错误的是   A．效应器由运动神经末梢和它所支配的肌肉、腺体组成B．兴奋以电信号的形式沿着神经纤维传导   C．神经元之间的兴奋传递是单方向的   D．条件反射的建立与脊髓等低级中枢无关 答案：D() 8.  (2015 •随州) 一Mrs Wang was sent to teach English in a poor mountain village last year.—She said she would never forget some pleasant while working there.   A. experiments   B. expressions   C. experiences   D. emotions