https://kandianshare.html5.qq.com/v2/news/2435351985259848002?docId=2435351985259848002&from_app=qb&sGuid=ba43247e00ef7e787920b11a13b788cb&sUserId=&sUserType=5&cardmode=1&sh_sid=5__24262a92236b974a__ba43247e00ef7e787920b11a13b788cb&target_app=kb[[北大培养的四位数学天才，都“归美”了，我们应该谴责，还是深思]]
