第10题: [单项选择]心室肌细胞不具有下列哪一项生理特性 A. 兴奋性 B. 自律性 C. 传导性 D. 收缩性 E. 有效不应期长 参考答案:B 答案解析:[考点] 心室肌的生理特性
[分析] 心室肌细胞是工作细胞,与特殊传导系统的心肌细胞不同。心室肌细胞有兴奋性(兴奋后有效不应期长)、传导性和收缩性,没有自律性;而特殊传导系统的心肌细胞有兴奋性、传导
A. nervous when faced with difficulties B. physically and mentally strained C. more capable of coping with adversity D. indifferent toward what happens to them 参考答案:C 答案解析:根据文章的最后一段"Many come through periods of stress with more physical and mental vigor than they had befo