單項(xiàng)選擇題對(duì)于營(yíng)養(yǎng)不良的營(yíng)養(yǎng)治療,開始時(shí)提供的熱量是()。

A.20kcal/(kg·D.
B.30kcal/(kg·D.
C.35kcal/(kg·D.
D.40kcal/(kg·D.
E.50kcal/(kg·D.