117. Feeling more and more pressure from the environment _______, the government has decided to close down the factories pouring out poisonous chemicals.

A．polluted

B．having polluted

C．being polluted

D．having been polluted

下面符合临床支持中心职能的是（）

A.接送行动不便的病人出科室检查和治疗

B.传递科室间的各种医疗文件

C.送检各类标本

D.请领外用药品、制剂及回收空瓶

E.以上都符合