Two lawyers have donated $50,000 to ________ our school's campaign "Help the Needy", which

was started by our former headmaster three years ago. [ ]

A. sponsor

B. launch

C. organize

D. plan

男，62岁。自5米高坠落半小时，自述口渴。查体：P 98次/分，R 35次/分，BP 128/95mmHg。表皮多处擦伤，腹部略隆起。腹部B型超声提示肝、脾被膜不连续，腹腔内有游离积液。

该患者诊断为腹外伤，肝脾破裂。行脾切除、肝破裂修补术，并给予中心静脉插管补液。术后7天突然寒战，体温39.5℃，无尿频、尿痛，无腹痛、腹泻。查体：腹部听诊未见异常，腹部切口愈合良好，无压痛。该患者发热最可能原因是

A．脾脏感染

B．腹腔脓肿

C．肝脓肿

D．导管相关性感染

E．坠积性肺炎