A.術(shù)后即可進(jìn)食 B.術(shù)后3~6小時(shí)可進(jìn)食 C.術(shù)后2~3天可進(jìn)食 D.腸道蠕動(dòng)功能恢復(fù)后 E.嘔吐反應(yīng)消失后進(jìn)食