男性,43岁,突发寒战高热,黄疸,右上腹剧痛
上述症状叫做
A.Ewart征
B.Rovsing征
C.腹膜炎三联征
D.Charcot三联征
E.Courvoisier征
参考答案:D
I like this pair of football boots. Could I ______ please? [ ]
A. try on them
B. tried on them
C. trying them on
D. try them on
CT扫描层厚的确定是通过改变X线束的()
A.准直宽度
B.硬度
C.强度
D.剂量
E.强弱