【简答题】尿石多数为混合成分的结石,临床上多为()结石,其次为磷酸盐及尿酸盐结石,感染性结石常为磷酸镁胺及磷酸钙与尿酸胺的混合结石。
【简答题】A.胆固醇结石 B.胆色素结石 C.混合性结石 D.泥沙样结石 胆道感染后发生的胆道结石多为 A. B. C. D.
【简答题】There seems to be an electrical problem. I’ll get someone to ____it. A) look at B) look into C) look upon D) look out
【单选题】—Look! It be the new woman manager. —It be her. She has just left for shanghai. [ ]