For many cities in the world,  there is no room to spread out further,  ________ New York is an

example. [ ]

A. for which    

B. in which

C. of which    

D. from which

青壮年和无基础疾病的社区获得性肺炎患者（）

A.常用大环内酯类、青霉素类、第一代头孢菌素和喹诺酮类

B.常用第二、三代头孢菌素，可联合大环内酯类

C.常用第二、三代头孢菌素，喹诺酮类和碳青霉烯类

D.选择广谱强力抗菌药物，足量联合用药

E.常用两性霉素B脂质复合体、氟康唑