It's hard to get _____ work these days. It is said, however, that he has been offered _____ nice job in a

big company.[ ]

A. a; a        

B. /; /           

C. /; a        

D. a; /

关于急性阑尾炎以下哪种说法正确

A．转移性右下腹疼痛是急性阑尾炎的典型症状

B．右下腹固定性压痛是急性阑尾炎的最重要体征

C．腹痛多开始于上腹或脐周，位置固定

D．腰大肌征阳性表示阑尾位置靠后

E．结肠充气试验阳性表示盆腔位置阑尾