That's a good girl. Her name is ______.[ ]

A.Wang Xiaoling

B.Wang Xiao Ling

C.Wang xiaoling

孕妇施行硬膜外阻滞麻醉，局麻药用量减少的原因是

A．孕妇下腔静脉受压，使脊椎静脉丛扩张，硬膜外隙容积缩小

B．孕妇对局麻药敏感性高

C．孕妇体内水、钠潴留

D．孕妇血压偏高

E．交感神经阻滞完全