AIM: to investigate the life factors influencing bone density of college students, so as to guide them to improve bone density and prevent osteoporosis.
目的：认识影响大学生骨密度的各种生活因子，以便指导大学生提高骨密度，预防骨质疏松症的发生。
AIM: to investigate the life factors influencing bone density of college students, so as to guide them to improve bone density and prevent osteoporosis.
目的：认识影响大学生骨密度的各种生活因子，以便指导大学生提高骨密度，预防骨质疏松症的发生。
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