A.25%~50% B.24%~50% C.21%~35% D.21%~55% E.52%~100%
A.1/2 B.2/3 C.1/3 D.相同 E.3/4
A.七氟醚 B.乙醚 C.地氟醚 D.異氟醚 E.安氟醚