(单选题)27: 以下哪个喹诺酮药物具有旋光异构体
A: 环丙沙星
B: 诺氟沙星
C: 氧氟沙星
D: 吡哌酸
1.(单选题)—I'vegotthesystemrunning,butIcan'topenmyfile. — A.Let me see if I ca...
1.(单选题)—Dad,thisismyroommate,Andrea. —_________________ A.Hello, Andrea. I'...
1.(单选题)—Doyouhaveanyplansfortomorrowmorning — A.I'm sorry, but I have anoth...
1.(单选题)—Doyouhaveanyplansfortomorrowmorning — A.I'm sorry, but I have anoth...
1.(单选题)— —I'mnotsurewhatI'lldo.IhopetowatchTVandenjoymyself. A.What are you...
要做作业扫码我