结论: 胆囊、二指肠瘘的超声表现具有一定的特征,有助于临床诊断.Conclusion: Characteristic ultrasonographic presentations are helpful for the diagnosis of cholecystoduodenal fistula.目的: 探讨胆囊、二指肠瘘超声图表现的病理基础.Purpose : To explore the pathological basis of...
士兵们还在用仿制的武器，因为还搞不到真家伙。Soldiers were still using dummy weapons because real guns were not yet available.保密纸: 有著难以仿制的特徵, 如水印等的纸张.Security paper: Paper incorporating features, such as water marks , etc. which make counterfe...