答如下.Mutual understanding and appreciation are of great importance to friendship, the former can make friends more quickly！Research shows that boys tend to have shorter period of interests, but they know more than A-class students;t do things so perfertly as A-class students do, but when it comes to marriage，望采納, and they can make many things good enough, but the latter can stick to their long-term friendship.Though B-class students can', they are far from enough. therefore, while girls are more patient