单项选择题

A1型题 女童保健要点之一是合理安排膳食,其中蛋白质、脂肪、糖类的摄入量占总热量的比例分别为()

A.20%~30%,12%~15%,50%~60%
B.12%~15%,20%~30%,50%~60%
C.50%~60%,20%~30%,12%~15%
D.12%~15%,50%~60%,20%~30%
E.50%~60%,12%~15%,20%~30%