A.-4%~+4% B.-6%~+6% C.-10%~+10% D.-8%~+8% E.-12%~+12%
A.ASA1~2級(jí),麻醉死亡率近1/10000 B.ASA3級(jí),麻醉死亡率近28/10000 C.ASA4級(jí),麻醉死亡率近74/10000 D.ASA5級(jí),麻醉死亡率近155/10000 E.以上都對(duì)
A.American Society of Anesthesiologists B.American Stomatological Association C.American Surgical Association D.American Standard Association E.American Statistical Association