问题 选择题

在表示同一地方的四幅地图中,图幅不变时,表示内容最详细的是(  )

A.1:4000000

B.1:16000000

C.地图上1厘米表示实际距离20米

D.1:24000000

答案

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.比例尺是分式,分子为1,分母越大,比例尺就越小,反之,分母越小,比例尺就越大.把选项中的比例尺化为数字式为:A、1:4000000,B、1:16000000,C、1:2000,D、1:24000000,因此选项C比例尺最大,表示的内容最详细.故C符合题意.

故选:C.

阅读理解

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