在临床根据血容量,常将休克分两大类,即_________ 和_________ 。
参考答案:血容量绝对减少血容量相对减少
_______ he was 12, Einstein had learned advanced mathematics by himself.
A.As soon as
B.At the time
C.By the time
D.During the time
属于风险评估的是()。
A.检查表
B.流程图法
C.理论概率分布
D.工作分解结构