A.16.3 B.22.1 C.10 D.15.8
A.24-48h;48-72h B.12-24h;48-72h C.12-24h;24-48h
A.恢復(fù)胃腸道功能 B.促進(jìn)吸收 C.降低感染率 D.便秘或腹瀉