26岁孕妇,妊娠7个月,贫血,头昏,无力,食欲缺乏,Hb45g/L,RBC25×10¹²/L,血常规提示:小细胞低色素性贫血。其贫血是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧