这道题目描述了4个发达国家在过去200年间人均身高的变化。很明显总体趋势都是上升，并且在第一个世纪除了持续波动，身高变化不大。在之后一百年，都是显著上升趋势。既然总体趋势相似，重点应放在国家之间的对比。小站教育上摘了一段范文节选，感兴趣的话可以去看看。
范文节选：Initially, Americans ranked the top, with an average height of approximately 168 cm which was immediately followed by British (166cm) while people from Denmark and France were slightly higher than 160 cm.
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这道题目描述了4个发达国家在过去200年间人均身高的变化。很明显总体趋势都是上升，并且在第一个世纪除了持续波动，身高变化不大。在之后一百年，都是显著上升趋势。既然总体趋势相似，重点应放在国家之间的对比。小站教育上摘了一段范文节选，感兴趣的话可以去看看。
范文节选：Initially, Americans ranked the top, with an average height of approximately 168 cm which was immediately followed by British (166cm) while people from Denmark and France were slightly higher than 160 cm.