A.1:200 B.1:500 C.1:1000 D.1:2000
A.1:50 B.1:100 C.1:200 D.1:300
A.硫酸鏈霉素、慶大霉素 B.普魯卡因青霉素、硫酸卡拉霉素 C.土霉素、鹽酸大觀霉素 D.鹽酸多西環(huán)素、氨芐青霉素