一天课余，一帮同学在谈论蜥蜴靠什么来选择后代性别。有的说：“靠自然因素。”也有的说：“靠遗传因子。”大家各说各的，争得面红耳赤，但谁也没有充分的令人信服的理由说服对方。忽然有人高喊道：“包峥，你这个‘小博士’快来呀，我们遇到难题了，你能来给我们说说吗？你 One day after class, a bunch of classmates talked about what the lizards depend on to choose their offspring. Some say: “It depends on natural factors.” Others say: “By genetic factors.” Everyone said their own things and won the prize. However, there was no convincing reason to persuade each other. Suddenly someone shouted: "Bao Zheng, you are a 'little doctor' Come on, we have problems, can you come to talk to us? You