慢性呼吸衰竭缺氧明显伴二氧化碳潴留时,采用氧疗的给氧浓度,下列哪项是正确的_____ 发布时间:2017-12-12 19:49 │ 来源:www.tikuol.com 题型:单项选择题 问题: 慢性呼吸衰竭缺氧明显伴二氧化碳潴留时,采用氧疗的给氧浓度,下列哪项是正确的______A.<25% B.<35%C.<45% D.<55%E.<65%
题型:单项选择题 看看你的应变能力,用所给单词的适当形式填空。1.We ____ (watch) TV tonight.2.They ___ (come) back from Englandsoon.3.Everyone has seen the film except ____ ( Ⅰ) .4.How many words _____ you _____ (learn)?5.He said it _______ (not be) funny. 查看答案