The "Barrel Theory" of Population Quality

Science & Technology Review ›› 1991, Vol. 9 ›› Issue (9108) : 20-23.

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PDF(605 KB)
Science & Technology Review ›› 1991, Vol. 9 ›› Issue (9108) : 20-23.
人口

The "Barrel Theory" of Population Quality

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 1991, 9(9108): 20-23

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