使,

Erika M Pliner1,2, Daina L Sturnieks3,4, Kurt E Beschorner5

  • 1Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA.

概括

年长的成年人使用梯子需要更长的时间,而年轻的成年人则会采取更危险的行为. 男性比女性更多地选择风险较高的梯子,这有助于这些人口统计学群体的下降率更高.

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