题目
在弹簧测力计下悬挂一个金属零件，示数是7.9N，当把零件浸没在密度为0.8×103kg/m3的油中时，测力计的示数为7.1N。该金属零件在油中受到的浮力是N，该金属零件的体积是cm3。（）
答案：【1】0.8【2】100
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