题目

Today, roller skating is easy and fun. But a long time ago, it wasn't easy at all. Before 1750, the idea of skating didn't exist. That changed because of a man named Joseph Merlin. Merlin's work was making musical instruments. In his spare time he liked to play the violin. Joseph Merlin was a man of ideas and dreams. People called him a dreamer. Merlin tried different ways to make himself roll finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party on wheels while playing the 下面左图是我国东南沿海“某岛屿城市扩展过程及海岸线变化图”，图中阴影表示建成区范围，右图是“建成区占该岛各高程土地面积比例变化图”。读图完成下面小题。【1】该岛的地势总体特点描述正确的是A.西高东低B.南高北低C.西北高、东南低D.东北高、西南低【2】1973年该岛建成区形成的主导因素是A.气候B.河流C.资源D.旅游【3】根据图中信息可以判断下列说法正确的是A.该岛海岸线的变化是全球变暖的反映B.该城市道路网密度东部大于西部C.该岛已经出现逆城市化现象D.该岛北部填海造陆面积大于南部