题目

关于牛顿运动定律,下列理解正确的是 A.作用力和反作用力等大反向,合力为零 B.先有力的作用,然后才产生加速度 C.质量越大的物体惯性也越大 D.物体只有受到力的作用才会运动 答案：C—Will you please _____ it to me on Friday? —What about Saturday? My computer doesn@^@^@t work well these days. [     ]A. post B. give C. e-mail D. bring