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    【题目】我国青藏高原纬度较低，但是高原上雪山连绵，冰川广布，其影响的因素是

    A．纬度因素

    B．地形地势因素

    C．海陆因素

    D．环境因素

    【答案】B

    【解析】

    试题分析：

    地势对气候的影响，主要表现为随着地势的增高，气温降低．一般情况下，每增高100米，气温约下降0.6℃．青藏高原平均海拔4000米以上，海拔高，气温低．这就是形成一些高山“一山有四季”、山顶积雪终年不化的主要原因，故选B．

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