题目

You have made a few spelling mistakes in your composition, but it is well written_______. A. on a whole    B. as a whole     C. general speaking  D. as the whole   答案：Bas a whole表示“从整个来看”、“就全体而言”、“总括而论”。与on the whole相近  3．关于重力下列说法正确的是（　　）A．空中飞行的小鸟不受重力作用B．重力方向垂直向下C．重心一定在物体上D．物体所受重力与其质量成正比