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某中学的数学教师每天给他的一个学生出三道题,作为课外作业让学生回家后去做,第二天早晨再交上来。有一天,这个学生回家后才发现老师给了他四道题,并且最后一道题似乎有些难度。他像平常一样沉入到解题的思路中……天亮时分,他终于把最后一道题给解决了。谁知,当他把这四道已解的题交给老师时,老师惊呆了:原来,最后那道题竟是一道在数学界流传已久而无人能解的难
A middle school math teacher gives one of his students three questions a day, as an extracurricular homework for students to go home, and then hand in the next morning. One day, when the student came home, he found out that the teacher gave him four questions and that the last question seemed to be somewhat difficult. He sinks into the problem-solving train of thought as usual ... ... At dawn, he finally solved the last question. Surprisingly, when he handed over the four dispassionate questions to the teacher, the teacher was shocked: the original question was actually a problem that has been circulating in mathematics circles for a long time and no one can understand it