根据血气分析结果,该患者的呼吸功能障碍为
A.通气功能障碍
B.换气功能障碍
C.通气和换气功能障碍并存
D.肺泡膜增厚所致弥散功能降低
E.通气/血流比例降低
参考答案:B
-- Do you think it's a good idea to make friends with your students?
-- ______, I do. I think it's a great idea.
A.Really
B.Obviously
C.Actually
D.Generally
依据资源开发强度和可能造成的环境影响程度,生态旅游主要有两种分类结果:积极主动型生态旅游、消极被动型生态旅游。