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Pages: 91
Year: Issue:  Z2
Journal: School Journal of Mathematics

Keyword:  老教授观察期末考试物系大学露出学科种类题目学生;
Abstract: <正>某大学动物系进行学科期末考试.老教授走进考场,提着一个用黑布罩着的鸟笼,只露出两条鸟腿.考试的题目就是:由观察到的鸟腿写下此鸟的种类。
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