—Would you like ______ tennis with us?
—I'd love to. I like ______ tennis very much.
A:playing; to play
B:playing; playing
C:to play; playing
D:to play; play
口袋中装有大小、材质都相同的6个小球,其中有3个红球、2个黄球和1个白球,从中随机摸出1个球,那么摸到红球或白球的概率是( )
读“地球公转示意图”,回答下列问题.
同名磁极相互____、异种电荷相互____.(填“吸引”或“排斥”)
下列关于平均速度和瞬时速度的说法中正确的是( )