Report - ¾ŸÒB 0Œ C T N 0S sBsourcedb.scr.cas.cn/zwqkk/gwqkwz/200911/P020091122382992512189.pdfPythagoras ca. 570—490 BC £šÒ Plato, 427 347 BC n€¿î‰ Aristotle 384 322 BC „ž“À:

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