在星球表面物体受到的重力大小可以用公式G=mg表示,地球和火星的g值如图所示。同一个物体从地球表面移至火星表面时() A . 质量变大 B . 质量变小 C . 重力变大 D . 重力变小 答案:D--Jenny, I think I’ll just have some coffee for a
change
--- ____.The coffee I
bought yesterday is in the cupboard
A.Change it, please B.Never mind
C.With pleasure D.Help yourself