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【题目】人口分布与自然条件、社会经济条件等有着密切联系。据此回答下列各题。

1亚马孙河流域是世界人口分布稀疏地区其主要影响因素是

A. 地形复杂 B. 气候湿热 C. 资源匾乏 D. 地处内陆

2巴西高原东部是南美洲人口相对密集地区其主要影响因素是

①气候适宜②文化单一③地势平坦④水力资源丰富

A. ①② B. ②④ C. ③④ D. ①③

【答案】

1B

2D

【解析】试题分析:

1】亚马孙河流域是世界人口分布稀疏地区,其主要影响因素是气候湿热,属于热带气候区,B对。 地形平原为主,单一,A错。淡水资源、生物资源丰富,C错。东面临大西洋,D错。

2】巴西高原东部是南美洲人口相对密集地区,其主要影响因素是气候适宜,对。人口多,文化丰富,错。沿海平原,地势平坦,对。地势平坦,落差小,水力资源不足,错。D对。

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