营养性缺铁性贫血的预防措施包括()
A.提倡牛乳喂养
B.提倡母乳喂养
C.纠正偏食
D.及时添加蛋黄、豆类、肉类
E.口服铁剂
参考答案:B, C, D
I have _____ football. Would you like to play _____ football with me ?[ ]
A. a, the
B. a, a
C. /, a
D. a, /
简述亚当·斯密对政府职能的看法。