当达到K平衡电位时() ["膜内电位为正","K+的净扩散为零","膜两侧电位梯度为零","膜外K+浓度高于膜内","膜两侧K+浓度梯度为零"]
男性,74岁,右侧腹股沟区可复性肿块8年。查体:病人直立时,在腹股沟内侧端、耻骨结节上外方有一4cm×4cm半球形肿物,未进入阴囊,平卧后自行消失。该病人最有效的治疗方法是()。 ["A.用棉线束带或绷带压迫内环口","禁烟、控制呼吸道感染","注射硬化剂","疝修补术","疝囊高位结扎术"]
患儿,10岁。10天前患传染性单核细胞增多症,现发热缠绵,面目发黄,四肢困倦无力,胃脘胀满,恶心,呕吐,肝脾肿大,舌红苔黄腻,脉濡数。治疗应首选的方剂是() ["参苓白术散","七味白术散","甘露消毒丹","黄芪桂枝五物汤","青蒿鳖甲汤合清络饮"]
组织学上把角膜分为() ["前弹力层","基质层","上皮层","后弹力层","内皮层"]
白喉的临床类型为() ["鼻白喉","咽白喉","气管白喉","喉白喉","其他部位白喉"]
腹膜炎的结局与患者全身和腹膜局部的()有关;亦决定于()的性质、数量和时间。