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回首美国的发展历程,我们会发现,美国,正是依靠了科学技术,才在不断的科技革命中,一步一步登上了世界强国的顶峰。
Looking back at the history of development in the United States, we will find that the United States has relied on science and technology before it has climbed the top of the world’s powerful nation step by step in the continuous scientific and technological revolution.