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同学们从本刊2006年第9期(学习号)黄汉平老师的文章里,得知轰动国际数学界的一件大事——21世纪七大数学难题
The classmates learned from the article of Teacher Huang Hanping in the 9th issue (No. 9) of this magazine in 2006 that a major event in the international mathematics community was the seven major mathematical problems in the 21st century.