For a long time we        that going to university and getting a degree will ensure a financially stable future.[ ]

A. are told

B. have told

C. have been told

D. tell

诊断急性阑尾炎最重要的体征是

A．右下腹有肌紧张

B．右下腹有反跳痛

C．右下腹有明显固定压痛点

D．闭孔内肌试验阳性

E．结肠充气试验阳性