如果在甲村和乙村之间修建一条公路,应选择________(②或③)线,

如果在甲村和乙村之间修建一条公路,应选择________(②或③)线,理由是______________。

答案

② 坡度小、工程量小


解析:

山岳地区公路选线,受自然条件影响较大,穿越在山谷应远离陡坡,沿等高线修建。如果在甲村和乙村之间修建一条公路,应选择②线,理由是坡度小、工程量小。

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