题目内容

【题目】下列比例尺中，图幅相同时，表示内容最详细的是（　　）
A.1：1600000
B.200万分之一
C.
D.

【答案】A
【解析】比例尺是表示图上距离比实地距离缩小的程度．在图幅相同的条件下，比例尺越大，表示的范围越小，内容越详细；比例尺越小，表示的范围越大，内容越简略．
比例尺大小比较时，比例尺不是数字式的应先化成数字式再比较大小；四个比例尺为：A是1/1600000，B是1/2000000，C是1/4000000，D是1/5000000，数字式比例尺大小的比较，分子为1，分母越大比例尺越小，反之则越大；比较选项中的比例尺得知，1/1600000比例尺最大；在图幅相同的条件下，比例尺越大，表示的范围越小，内容越详细，故选项A符合题意．故选：A．

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