2016年9月26日，中国500米口径球面射电望远镜正式启用，成功接收到1351光年外脉冲星讯号。这意味着，中国从此可以用自己的望远镜收听来自太空深处的无线电波，探秘宇宙变迁、地外新星和生命体。由此可见（    ）

①事物的发展取决于人类认识的提高

②实践具有直接现实性

③实践的发展为人们提供了新的认识工具

④只有尚未认识而没有不可认识之物

材料一：英特尔高级院士Gene Meieran认为，创新有三种类型突破性创新，其特征是打破陈规，改变传统和大步跃进；渐进式创新，特征是采取下一逻辑步骤，让事物越来越美好；再运用式创断，特征是采用横向思维，以全新的方式应用原有事物。

——《维基百科》

材料二：宋承唐制，抑又甚焉。三师、三公不常置，宰相不专任三省长官，尚书、门下并列于外，又别置中书门下，是为政事堂，与枢密对掌大政。天下财赋，内庭诸司，中外管库，悉隶三司。中书省但掌册文、覆奏、考帐；门下省主乘舆八宝，朝会板位，流外考较，诸司附奏挟名而已。台、省、寺、监，官无定员，无专职，悉皆出入分莅庶务。故三省、六曹、二十四司，类以他官主判，虽有正官，非别敕不治本司事。事之所寄，十亡二三。

——［元］脱脱等《宋史》卷一六二《职官志》

材料三：倘使我们说，中国传统政治是专制的，政府由一个皇帝来独裁，这一说法用来讲明清两代是可以的。

——黄仁宇《中国大历史》

    Canada Geese are large blue and white birds. When autumn comes, they have to fly south where the weather is warmer. The winters are so cold in Canada that the birds will die if they stay there.

    Last spring, Bill Lishman found sixteen young Canada Geese on his farm. They had lost their parents. Bill thought, “These young birds won't know what to do in the autumn.” He had a small plane and he decided to teach the birds to fly by following him. All through the summer, he went on short trips in his plane and the young geese flew after him.

    When the cold weather arrived in the autumn, Bill flew to Virginia in the United States------600 miles South of his home in Canada. The geese followed him all the way. Bill left the geese in Virginia and he returned home.

    This spring, Bill was waiting for the birds to come back. They didn't arrive, so Bill flew to Virginia to get them. He looked for them for two weeks but he couldn't find them. When he arrived back home, he found the geese waiting for him. They had found their way home without him!

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