体育锻炼用的一个实心铅球的质量是4kg,经测量它的体积是0.5dm3 , 则该铅球的密度为kg/m3 , 若该铅球是纯铅做的,铅的密度是11.3×103kg/m3 , 质量应为kg。 答案:【1】8×103【2】5.65Although I admire you _____ your work on soil,I think you should apologize the villagers for the water pollution.
A.for;to
B.to;for
C.for;for
D.to;to