恩氟烷和异氟烷的MAC值分别是

• A、恩氟烷2.20%，异氟烷1.57%
• B、恩氟烷1.15%，异氟烷1.68%
• C、恩氟烷1.09%，异氟烷0.75%
• D、恩氟烷0.67%，异氟烷0.46%
• E、恩氟烷1.68%，异氟烷1.15%