A.5%~10% B.10%~20% C.20%~40% D.45%~55% E.60%以上
A.皮膚蒼白 B.有效循環(huán)血量的急劇減少 C.血壓下降 D.四肢濕冷 E.煩躁不安
A.30% B.50% C.60% D.80% E.100%