A:
B:
C:
D:
A. Hello, Alice. B. I can play cards C. No
—Hello, Ben.
— ____
—Can you play football?
— ____, I can play cards.
—Oh, ____, too.
“一场春雨一场暖”描述的天气系统是( )
A、B、C、D四个轻质带电小球的相互作用情况如图所示,A、B相互吸引,B、C相互排斥,三组间不互相影响,那么D球( )