有关航空港建设的叙述,正确的是①要有良好的地质条件,保证地基

有关航空港建设的叙述,正确的是

①要有良好的地质条件,保证地基稳定  ②地面要水平开阔,利于飞机起降  ③离城市越近越好,最大程度地方便旅客  ④地形要平坦开阔、坡度适当,以利于排水

A.①②              B.②③              C.③④              D.①④

答案

D

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