“各国变法，都是经过流血才成功的。中国还没有人流血，让我来做第一个吧！”下列与其相关的历史事件是 （  ）       

资料一：2018年中国科学院神经科学研究所孙强研究员的团队，成功获得了世界上首例体细胞克隆猴，取名“中中”和“华华”（如下图所示）。

资料二：其实，早在“中中”和“华华”之前，生物科学技术就培育出能产生人乳铁蛋白的奶牛----“牛牛”，“牛牛”的诞生如右图所示。

    Peter plays basketball for the kids basketball club. He usually gets up at 5:30 and runs in his school from 5:40 to 6:40.After running, he has breakfast at 7 o'clock. For breakfast, he eats some eggs and vegetables. At 8:00,he plays basketball with his friends. They play for a long time. At about 12:00,they have lunch. For lunch, Peter has lots of vegetables, chicken and fruit. At 3 o'clock in the afternoon, Peter goes to the kids basketball club. Peter has dinner at about 7:00 in the evening. After dinner, he watches basketball games on TV. Peter usually goes to bed at 9:30.

《吕氏春秋·上农》在描述农耕之利时不无夸张地说：一个农夫耕种肥沃的土地可以养活九口人，耕种一般的土地也能养活五口人。战国时期农业收益的增加（  ）