小儿腹部平片出现“双泡”征,最可能的诊断为() ["正常变异","胃扭转","幽门肌肥大","十二指肠梗阻","小肠旋转不良"]
以家畜粪尿为主和垫料为辅,积制而成的肥料,统称为() ["A、堆肥","B、绿肥","C、厩肥","D、粪尿肥"]
根据第7版食管癌TNM分期,关于食管分段,叙述正确的有() ["颈段食管:始于下咽,向下至胸骨切迹平面的胸廓入口","胸上段食管:自胸口入口向下至气管分叉水平","胸中段食管:自奇静脉弓下缘向下至下肺静脉水平","胸下段食管:自下肺静脉水平向下至胃","腹段食管:自膈肌食管裂孔水平向下至胃"]
硫铵施入土壤后,由于植物对养分有选择吸收性,结果使土壤() ["A、变酸","B、变碱","C、PH值不变","D、变得疏松"]
下述哪些药有致癫痫性() ["恩氟烷","异氟烷","氯胺酮","丙泊酚","美索比妥"]
慢性肾衰竭