严重感染时患者基础能量消耗是
A.20~24kcal/(kg·d)
B.25~29keal/(kg·d)
C.30~35 kcal/(kg·d)
D.36~40 kcal/(kg·d)
E.41~45 kcal/(kg·d)
请帮忙给出正确答案和分析,谢谢!