Many people think it necessary for people who are out of work ______so that they can acquire one

or more basic skills for survival in modern society.   [ ]

A. be reeducated  

B. being reeducated  

C. to be reeducated  

D. reeducated

医院内感染的肺炎中最常见的病原菌是

A．葡萄球菌

B．病毒

C．甲种溶血性链球菌菌

D．肺炎球菌

E．革兰阴性杆菌