简述机械通气指征。

A. bring the sails parallel to the wind
B. reduce sail area exposed to the wind
C. allow the sails to catch more wind
D. remove all tension on the main and jib sheet

A. 不变
B. 弯曲
C. 降低
D. 升高

A. 利多卡因
B. 苯妥英钠
C. 普鲁卡因胺
D. 奎尼丁
E. 洋地黄