患者,男性,40岁。门脉高压致食管胃底静脉破裂出血,经放置三腔管压迫止血和快速输血、补液后,出血停止。脉搏每分钟150次,血压76/46mmHg,中心静脉压2cmH2O。表示病人已发生()
A. 血容量严重不足
B. 血容量过多
C. 肺血管过度收缩
D. 周围血管过度扩张
E. 心功能不全
查看答案
Clear [1] and dark[ƚ]are allophones of the same one phoneme /1/.They never take the same position in sound combinations, thus they are said to be in c() distribution.