急腹症主要症状是（）。
A.恶心
B.呕吐
C.腹痛
D.发热
E.腹胀
参考答案：C
She felt rather _______that she should drive the car at such a________ speed．
A．frightening, frightening
B．frightened, frightened
C．frightening, frightened
D．frightened, frightening
属于结肠病变导致腹泻的是（）
A.腹泻量大，超过1200ml/天
B.便中有较多红、白细胞
C.常伴下腹部疼痛
D.多发生于餐后2小时
E.血清VIP增高
