下列说法正确的是( )
A:掷一枚硬币,正面一定朝上
B:某种彩票中奖概率为1%,是指买100张彩票一定有1张中奖
C:旅客上飞机前的安检应采用抽样调查
D:方差越大,数据的波动越大
A:Our new school is big and nice. There is a gym in our school now.
B:Yes, and there is a big library, too.
在横线上填上“>”“<”或“=”.
1____ 88
1210 ____1