※ [16～18]. ( 4)
参考答案：A
Although he knew little about the large amount of work done in the field , he succeeded other more well-informed experimenters failed.
A．as
B．unless
C．what
D．where
患者，女性，29岁，急性化脓性阑尾炎。术后第7天出现高热、寒战，右上腹疼痛，伴有呃逆。判断患者可能发生的情况是
A．膈下脓肿B．盆腔脓肿C．吻合口瘘D．胆囊炎E．肝脓肿
