A:端午时节粽子飘香﹣﹣分子在不停地运动
B:干冰升华变为气体,所占体积变大﹣﹣气体分子变大
C:晴天湿衣服比阴天干得快﹣﹣晴天气温高,分子运动速率快
D:6000L氧气加压后可装入容积40L的钢瓶中﹣﹣分子间有间隔
为了了解某校高三学生的视力情况,随机地抽查了该校100名高三学生,得到学生视力频率分布直方图,如右图,由于不慎将部分数据丢失,但知道前4组的频数成等比数列,后6组的频率成等差数列.设最大频率为a;视力在4.6到5.0之间的学生人数为b,则a、b的值分别为
— Please don't ask me about this. It is none of your business.
— I don't think so. I think everyone has the right to know it.