几个概念的区分: (1)神经纤维:由长的______外套上一层鞘构成 (2)神经 发布时间:2017-07-27 18:44 │ 来源:www.tikuol.com 题型:填空题 问题: 几个概念的区分:(1)神经纤维:由长的______外套上一层鞘构成(2)神经:由许多______聚在一起,外包______而成(3)神经末梢:______末端的细小分支.
题型:填空题 A survey of the opinions of experts ____ that three hours of outdoor exercise a week ____ good for one's health. [ ]A. show; are B. shows; is C. show; is D. shows; are 查看答案