【单选题】三腔管放置24小时后,食管气囊放气时间为
【单选题】杜某,孕26w,产前检查中发现胎儿近3w宫高增长缓慢。下列哪项检查不能反映胎盘功能
【简答题】听下面一段材料,回答第1至4题。 1. What did the doctor do first? A. Gave the woman some medicine. B. Took the woman's temperature. C. Let the woman go home. 2. How long had it been bothering the woman? A. For a long...