【題目】在一幅地圖上，量得北京到天津的直線距離是3厘米，兩地實(shí)地距離是120千米，這幅地圖的比例尺是：

A．1：40

B．四十萬(wàn)分之一

C．圖上1厘米代表實(shí)地距離400千米

D．1：4000000

【答案】D

【解析】

試題分析：

根據(jù)比例尺的公式：比例尺=圖上距離實(shí)地距離=3/12000000=1/4000000，也就是圖上1厘米表示實(shí)地距離40千米．故選項(xiàng)D符合題意，故選

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