A.普萘洛爾 B.阿普洛爾 C.普拉洛爾 D.拉貝洛爾
A.1S,2S B.1R,2R C.2R,3R D.1S,2R
A.PenicillinK B.PenicillinN C.PenicillinX D.PenicillinG