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【題目】 下列屬于我國地勢第一、第二級階梯分界線的是(

A.大興安嶺太行山脈巫山雪峰山 B.昆侖山脈祁連山脈橫斷山脈

C.天山山脈陰山山脈燕山山脈 D.長白山脈武夷山

【答案】B

【解析】

試題分析:

我國地勢西高東低,呈三級階梯分布。其中昆侖山脈、祁連山脈、橫斷山脈一線是地勢第一階梯和第二階梯的分界山脈,大興安嶺、太行山、巫山、雪峰山一線是地勢第二階梯和第三階梯的分界山脈,故本題選B。

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