A.維生素D缺乏 B.血磷明顯降低 C.堿性磷酸酶增高 D.血清離子鈣降低 E.鈣磷乘積降低
A.母孕期應(yīng)多曬太陽 B.母孕期末三個月應(yīng)補(bǔ)充維生素D C.堅持母乳喂養(yǎng) D.嬰兒在生后兩個月起補(bǔ)充維生素D E.按時添加輔食
A.100IU B.200IU C.300IU D.400IU E.900IU