第16题: [单项选择]一24岁农村妇女,平素健康,孕足月在家由乡医接生,胎儿娩出后,即流出大量新鲜血,新生儿体重4,200克,15分钟后胎盘自然娩出,但一直阴道持续流血,有血块,转上级医院时,面色苍白,四肢凉,BP8/5kPa(60/40mmHg),P130次/分,弱,经输血1200毫升后,血压回升至12/8kPa(90/60mmHg),给予积极恰当治疗后,病情稳定,出血停止,次日查血常规,Hb7.5g/dl,又输同型血800毫升此患者最可能的诊断是() A. 凝血功能障碍 B. 子宫收缩乏力 C. 胎盘滞留 D. 软产道裂伤 E. 前置胎盘 参考答案:D
A. was vitamin B B. did not affect the chickens C. was named the Eijkman vitamin D. has never been accurately identified 参考答案:A 答案解析:[分析] 判断推理题。根据文章最后一段第四句The element needed to prevent beri-beri was shortly afterwards isolated from r