I ______ sooner but I didn’t know that they were waiting for me.

A．had come

B．was coming

C．would come

D．would have come

女，45岁，晨起锻炼时突发右下腹痛4小时，伴恶心，今年有多次相似发作史。查体：右下腹深压痛；尿常规：白细胞少量，红细胞（3+），诊断首先考虑（）

A.急性阑尾炎

B.十二指肠溃疡穿孔

C.右输尿管结石

D.右肾结核

E.急生膀胱炎