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交作业

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小_飞_燕

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var bmi = weight/(height*height); if (bmi<18.5){ alert("过轻"); }else if(bmi>=18.5 && bmi<25){ alert("正常"); }else if(bmi>=25 && bmi<28){ alert("过重"); }else if(bmi>=28 && bmi<32){ alert("肥胖"); }else if(bmi>=32){ alert("严重肥胖");}


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