A:扫地时灰尘飞舞说明分子在做无规则运动
B:海绵容易被压缩能说明分子间有空隙
C:当物体的温度降至0℃时,分子不会停止运动
D:破镜不能重圆,主要是因为分子间有排斥力
The fire started on the second floor and it wasn't long ______ the whole building was burned down.