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2013-05-23 12:21
求翻译：resulting persistent lack of success in teaching the subject - all these facts are not less puzzling than they are conspicuous. For the last several decades ever growing resources have been invested in a search for an improvement in mathematics teaching. The results, however, are still far from satisfactory- the sought是什么意思？ 待解决
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resulting persistent lack of success in teaching the subject - all these facts are not less puzzling than they are conspicuous. For the last several decades ever growing resources have been invested in a search for an improvement in mathematics teaching. The results, however, are still far from satisfactory- the sought
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