某中学生物学科社团小组在学习了“青蛙的生殖发育”后,开展“各种污染物对青蛙受精卵卵化率的影响”的探究活动.他采集了一定数量的青蛙受精卵.它们采集了一定数量的青蛙受精卵,以化肥、洗涤剂作为污染物,在鱼缸中进行实验观察.
①他们作出的实验假设是:各种污染物会降低青蛙受精卵孵化率;
②将3个鱼缸中加入等量的清水,并编号1、2、3;在1、2号鱼缸中分别放入一定量的化肥、洗涤剂;
③把青蛙受精卵分成三等份(各100粒),分别放入上述三个鱼缸中,在相同适宜的环境中孵化.
回答下列问题:
There are three people in Yang Yang's family. They like different kinds of food. Yang Yang likes rice a lot. But she doesn't like chicken at all. Her father is from Shanxi. He doesn't like rice at all. He likes chicken and bread very much. Her mother is from Dalian. She doesn't like rice or bread at all. But she likes fish and vegetables a lot. They love each other and help each other.
徐玉玉被诈骗电话骗走上大学的费用,郁结于心,导致心脏骤停,虽经医院全力抢救,但仍不幸离世。案件实施的关键是犯罪分子购买到了徐玉玉的精确个人信息。为了避免个人信息的泄露,国家必须加强对公民______的保护。( )
有19位同学参加歌咏比赛,所得的分数互不相同,取得分排前10位的同学进入决赛。某同学知道自己的分数后,要判断自己能否进入决赛,他只需知道这19位同学成绩的( )
I didn't know the way to the cinema .