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      Opened in 1883, the Brooklyn Bridge was the first long－span bridge to carry motor traffic, and it quickly became the model for the great suspension bridges of the following century. Spanning New York's East River, it provided the first traffic artery between Manhattan Island and Brooklyn. Before that, the only transportation was by ferries, which were slow and could be dangerous in winter.

      The construction of a bridge over the East River had been discussed since the early 19th century, but the outbreak of the Civil War in 1861 deflected all consideration of the project. When the war ended in 1865, the bridge became an important issue once more. In 1867, the New York State passed an act setting up the New York Bridge Company for the purpose of constructing a bridge between Manhattan Island and Brooklyn.

      John Augustus Roebling was chosen to design the bridge. Born in Germany in 1806, he held aggressive views as a student and was listed by the German police as a dangerous figure. He emigrated to America in 1830 to escape political discrimination.

      Roebling proposed a bridge with a span of 1,500 feet (465 m), with two towers in the East River serving as the main piers. The bridge that was actually built is longer—1,597 feet (486 m), the longest suspension bridge at that time.

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—Yes. The road ________ up with several miles of vehicles within a few minutes.

中国与泰国、越南等湄公河流域五国3月23日在海南三亚举行了澜沧江—湄公河合作首次领导人会议。在澜沧江—湄公河国家合作展上，看到湄公河国家领导人对中国水稻品种表现出浓厚兴趣，***高兴地说，要让中国杂交水稻“走出国门”，助力澜—湄国家成为“世界粮仓”。完成下列各题。