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【题目】图幅相同的甲乙两图。甲图比例尺是乙图的两倍:

A.乙图表示范围广,内容粗略B.乙图表示范围小,内容详细

C.乙图表示范围小,内容粗略D.乙图表示的地图面积是甲图的2倍

【答案】A

【解析】

比例尺是表示图上一条线段的长度与地面相应线段的实际长度之比。公式为:比例尺=图上距离与实际距离的比。比例尺有三种表示方法:数值比例尺、图示比例尺和文字比例尺。一般来讲,大比例尺地图,内容详细,几何精度高,可用于图上测量。小比例尺地图,内容概括性强,不宜于进行图上测量。

相同图幅,比例尺越小表示范围越大,内容越简略;比例尺越大表示范围越小,内容越详细。图幅相同的甲乙两图,甲图比例尺是乙图的两倍,甲图比例尺大,表示的范围小,内容详细;乙图表示的地图面积是甲图的4倍。故选:A

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