A:
B:
C:
D:
-- What's wrong, Daming?
-- Oh, I feel sad to hear more than _______ people lost their lives in the earthquake in Sichuan at 2:28 on the afternoon of May 12, 2008.
小明想探究足球滚动的快慢和什么因素有关
浸泡液
雄花
雌花
雄花:雌花的比值
水(对照)
21.1
3.8
5.6
甲(赤霉素(100毫克/升)
4.7
1.O
乙(CP(100毫克/升)
7.8
6.2
1.26
丙(乙烯利(1000毫克/升)
19.6
3.7
5.3
丁(整形素(10毫克/升)
33.1
1.2
27.6
把89化为最简二次根式是( )