高选择性胃迷走神经切断术的要点是() ["不切断胃窦部位的迷走神经支","保留迷走神经左主干","保留迷走神经右主干","保留胃的壁细胞的迷走神经分支","不切断迷走神经的肝、胆支"]
门脉高压时,反向压力可导致脾() ["肿大并充血","脾门淋巴结肿大","梗死","萎缩","占位"]
男性,70岁。排尿困难10年,加重伴尿频、尿急和尿痛1年。查体:前列腺Ⅱ度增大,质中,表面光滑。B超检查:前列腺5.2cm×4.6cm×3.8cm。根据患者情况,治疗首选()。 ["开腹前列腺摘除术","膀胱造瘘术","药物治疗","经尿道前列腺电切术","留置导尿管"]
磁性原子核需要符合的条件是() ["中子和质子均为奇数","中子为奇数,质子为偶数","中子为偶数,质子为奇数","以上都可以","以上都不对"]
因溃疡作胃大部切除术,通常认为适当的胃切除容积是() ["30~40%","40~50%","50~60%","60~70%","70~80%"]
韵味无穷