A:一五计划期间
B:三大改造期间
C:“文化大革命”期间
D:改革开放之后
肤色正常的父亲(Aa)和母亲(Aa),生下一个肤色正常孩子的可能性为( )
Food is very important to our health. Everyone needs to eat well if he or she wants to have a strong body.Our minds, like our bodies, always need the best food. This kind of food is knowledge. We start getting knowledge when we are very young.