肝硬化门脉高压症病人麻醉管理中的关键是()
A.呼吸道管理
B.足够的血容量
C.控制性降压
D.纠正酸碱平衡紊乱
E.避免肝缺氧、缺血
参考答案:E
下列选项中属于贝类原料中腹足类的是______。
A.海螺
B.鲍鱼
C.鱿鱼
D.牡蛎
E.蜗牛
If a needle is thrown ______ on a sheet of paper ruled with lines, how often can it be expected to fall on a line
A.on purpose B.with accuracyC.at random D.according to one’s own will