体重的个体差异范围一般在均数的_____以内,营养不良体重低于均数的_____以上,单纯性肥胖体重高于均数的_____以上。
— ___________________
— Once or twice a week.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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