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【题目】这种地势特征对我国自然地理环境和经济发展的影响表现为( )
A.在阶梯内部,由于降水丰富,水能资源巨大
B.使我国许多大河自东向西注入海洋,沟通了东部与西部之间的交通
C.有利于海洋上的湿润气流深入内陆,形成丰沛的降水
D.有利于我西北内陆地区的种植业发展

【答案】C
【解析】我国地势西高东低,大致呈三级阶梯状分布,并且向海洋倾斜,这种地势分布特点有利于海洋湿润气流深入内地,形成降水;使许多大河滚滚东流,注入太平洋,并沟通了东西交通,加强了沿海与内地的联系;还使许多河流在从高一级阶梯流入低一级阶梯的时候,落差大,水流湍急,产生巨大的水能资源;这种地势特征使得我国西北地区降水少,不利于该地区的农业发展。故C正确。
所以答案是:C。

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