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The future is coming! All over the world there are many new ideas(想法) for new places to live and work in. Some of them will be in the sea! They will be very big and lots of people will live and work in them. The Americans are planning to build a town called Atlantis City. It will be in the sea，about five miles away from the land. But the most exciting idea comes from Japan. It is called Acropolis. Acropolis will be a huge sea city, with parks, schools, a hospital and an airport. And it will move! It will travel slowly around the world. There are just two problems. Acropolis will cost (花费) a lot of money to make. And for people who get seasick, it won't be much fun.

下列信息资料中，关于黄河的有（    ）

  ①发源地为各拉丹冬雪峰 ②小浪底水利工程 ③流经宁夏平原

④虎跳峡               ⑤“地上河”     ⑥“黄金水道”