题干

近年来,西藏青稞酒、山西老陈醋、新疆沙棘汁等各地名优土特产纷纷出现在北京的“商品大集”上,广受市民青睐。一系列“商品大集”的举办有利于 (    )
①提升北京居民的消费结构       ②加快生产要素向北京聚集
③满足北京居民的消费需求       ④推动商品的跨地区流通

A:①②

B:①④

C:②③

D:③④

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D

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Zheng He was an amazing man. He was born in 1371. Eleven years later, he was caught by the army of a rich young man called Zhu Di and made to work for him. Over time the rich man saw that Zheng He was very clever and strong and they became close friends. In 1403 Zhu Di was made the king of China and he asked Zheng He to join his government.  

  The king wanted to learn more about the world and show other countries his power. He ordered many new ships to be built and made Zheng He their leader. Between 1405 and 1433, Zheng He led seven sea trips to different parts of the world. He certainly traveled to India, Africa and the Middle East. A few people think his ships have even reached South America and Australia.  

  Each trip lasted between two and four years and it is believed he sailed more than 50, 000 kilometers during the years of his travels. Zheng He led a fleet with

28, 000 men and over 300 ships, such as boats for food, water and even soldiers’horses.  

  On these trips he brought with him many Chinese goods like silk and medicine to give to foreign kings or to sell for local goods. He returned from each trip with boats which were filled with expensive things such as gold and treasures, foreign guests and strange animals like a giraffe.  

  It is a pity that we may never learn everything about Zheng He’s travels. The Columbus of the East, Zheng He, died in 1433. After that, the new king had these trips stopped and he burned almost all the books about Zheng He’s travels, because he believed the trips were unlucky and too expensive. It is only in the last 50 years that historians have begun to carefully study the adventures of great Zheng He.