在农村经济不发达地区,营养摄人不足导致的缺铁性贫血、维生素A缺乏、佝偻病等营养缺乏病发病率高于城市区域。
参考答案:对
This kind of exercise is most _______, and therefore is a good test of your students’ ability.
A.surprising
B.encouraging
C.exciting
D.challenging
中国营养学会推荐0~6个的月婴儿脂肪摄入量应占总能量的()。
A.25%~30%
B.30%~35%
C.40%~45%
D.45%~50%