题目

Did you ask the teacher what _____ this afternoon?A. will we do  B. we would do         C. shall we do    D. would we do 答案：B用弹簧测力计吊着一个重18N的物体，浸没在水中时，测力计的示数为10N，则该物体受到的浮力是88N，该物体的体积为8×10-48×10-4m3．（取g=10N/kg）