中国签署了加入WTO的正式文件，是一个让世界，特别是中华儿女关注的重大消息。可以这样说：这标志着中国正式融入世界轨道的一个里程碑。中国要融入世界，是历史的一个必然。在历史上，由于科技和经济的不发达，国与国之间的交流是有限的，世界可以说是一个封闭的世界。但是在 China has signed the official document of joining the WTO and is a major message that the world, especially the sons and daughters of China, are concerned about. It can be said: This marks a milestone in the formal integration of China into the world track. To integrate China into the world is an inevitable result of history. Historically, due to the underdevelopment of science and technology and economy, the exchange between countries has been limited. The world can be said to be a closed world. But when