关于合并心脏病的产妇的护理,下列何项错误() ["产后出血多时,立即肌注麦角新碱","第一产程专人护理","第二产程阴道助产","第三产程腹部放置砂袋","心功能Ⅲ级应该退奶"]
铝硅比提高,对催化剂收率影响是()。 ["上升","下降","不变","不确定"]
通过哪种测量值可确定大气的稳定度() ["气温垂直递减率","大气压力","标准气温和地面气温之差"]
目前病理学的最主要研究内容?() ["病因","发病机制","疾病的治疗","病变组织的形态结构","病变机体的功能、代谢变化"]
风的日变化规律表现为() ["白天小,夜间大","陆地不明显,海上明显","A.B都对","A.B都错"]
流式细胞术(flow cytometry)