单项选择题
A.10% B.20% C.30% D.40% E.100%
A.20~25kcal/(kg·D. B.25~30kcal/(kg·D. C.30~35kcal/(kg·D. D.36~40kcal/(kg·D. E.50~100kcal/(kg·D.
A.15~20kcal/(kg·D. B.25~30kcal/(kg·D. C.30~50kcal/(kg·D. D.50~60kcal/(kg·D. E.100kcal/(kg·D.
A.1:10 B.1:50 C.1:100 D.1:150 E.1:1000
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