——You have a beauifuln voice. I love your songs.——_______.
A:Sorry,you don't
B:Thank you
C:It's OK
D:That's all right
如图所示,工人将一底面积为0.06m2,高为2m,密度为2.0×103kg/m3的圆柱形实心物体从水下匀速提升1m,当物体未露出水面时,求(g取10N/kg)