如患者用药后仍有活动性出血,采用三腔二囊管压迫治疗时,下述正确的是() A. 插管前应检查气囊有无漏气 B. 胃囊注入空气100~200ml C. 胃囊内压力2.67~5.34kPa D. 食管囊内注入空气250~300ml E. 食管囊内压力4.67~6kPa F. 以0.5kg重沙袋(或盐水瓶)通过滑车固定于床头架上牵引
第24题: [单项选择]Interview TwoHow long is the most popular tour in the Opera House A. 2 hours. B. 0.5 hour C. 1 hour. D. 8 hours. 参考答案:C 答案解析:女士在向男士介绍从网站上获得的信息时,读到“This is our most popular tour...”,随后男士问及“Does it say how often the tour goes”,