细胞膜是系统的边界,它的功能是_______________________。
将细胞与外界环境分隔开;控制物质进出细胞;进行细胞间信息交流
患者,男,71岁。因左侧面颊部疼痛3年入院,疼痛为针刺样,分布在左唇部及鼻翼旁,每次发作持续5~20秒钟,吃饭,说话等可诱发疼痛。口服卡马西平0.1,tid,效果欠佳,加量后伴有头晕症状。
该患者三叉神经痛累及神经为三叉神经第几支()
A.Ⅰ
B.Ⅱ
C.Ⅰ、Ⅲ
D.Ⅰ、Ⅱ
E.Ⅱ、Ⅲ
Talk Show is becoming more and more ______ among some actors, who make full use of various
topics to reflect the changing society. [ ]
A. average
B. popular
C .usual
D. ordinary