A girl may pass easily through the first few grades. While boys of her age being have low marks, the girl may easily get good grades. Girls seem to have "better brains" in school. Why do so few girls become great scientists Why is the most important thinking in adult world done by man According to scientists, the answer is aggressive (进取性), Boys usually refuse to accept other people’s condition, They insist on solving problems for themselves. While little girls are getting high marks in school for remembering what the teacher has told them, little boys are leaving to think in their own ways. Boys are usually the ones who get high pay and powerful job because they are trained to be aggressive at an early age. Why do girls get better marks at school than boys Because girls are good at ______.