Peter enjoyed _______ at his birthday party last night.[ ]
A. he
B. him
C. himself
D. his
答案:C
呼吸衰竭可作鼻或口鼻面罩机械通气的患者是()。
A.轻中度神志尚清,能配合的患者
B.病情严重,神志清,不合作的患者
C.昏迷的患者
D.呼吸道有大量分泌物的患者
E.需长期机械通气支持的患者