I was nearly exhausted from preparing my experiment report last night so I took a hot bath to         myself.

A．behave

B．transform

C．present

D．refresh

男性，70岁。发热，咳嗽3d就诊，痰呈砖红色果冻状。体检右上肺实变体征。X线胸片示右上大叶性肺炎，水平裂下坠。其最可能的病原体是（）

A.肺炎克雷白杆菌

B.肺炎链球菌

C.肺炎支原体

D.大肠埃希菌

E.肺吸虫