卷尺
★ BMI指数(BODY MASS INDEX)即身体质量指数 = 人体体重(kg)除以身高2, 是用于衡量人体胖瘦 程度以及是否 健康的一个标准.
★ 显示小图怎样读数: 体重和身高的线条对齐, 窗口显示的即为相应的BMI值.
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