研究发现，遵循医学协会建议的妇女生下的孩子在3岁的时候就超重的比例比其他怀孕期间体重增加更少的妇女生下的孩子同期超重的比例要高出四倍。
Women in the study who followed the IOM's recommendations ran four times the risk of having a child who was overweight at age 3, compared to women who gained less than the advised amount.
但是班里男生的人数将比女生的三分之一更少。
However, the number of the boys will be less than a third of the girls in the class.
女生相对于男生有更好的学校表现，更为合群，行为问题更少，但有更多的情绪问题。
Girls behave better at school, and are more gregarious, have more emotional problems, and less behavioral disorders than boys.
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