A.胃食管反流 B.喂養(yǎng)不當(dāng) C.消化道寄生蟲 D.先天性肥厚性幽門狹窄 E.感染
A.0.1~0.2g/L B.0.2~0.4g/L C.0.1~0.3g/L D.0.2~0.6g/L E.0.3~0.4g/L