洋葱被誉为“蔬菜皇后”,切洋葱时可闻到刺激性气味,这说明 [ ]
A.分子在不停地运动
B.分子体积很小
C.分子间有间隙
D.分子质量很小
答案:A
《中国居民膳食指南》中关于肥胖儿膳食的建议是()
A.参加体力活动,避免盲目节食
B.增加鱼、肉、蛋、奶、海产品的摄入
C.每日饮奶
D.食物要粗细搭配,易于消化
E.保证吃好早餐
The ()of this recipe (烹饪法) was made public one year after it was put into the market.
A.formula
B.form
C.flavor
D.frown