题目内容

【题目】我国人口分布的基本特点是：以黑河－腾冲线划分，东南部人口稠密，西北部人口稀少。回答下列各题。

【1】对我国人口分布格局起决定性作用的主要是

A．地形和气候 B．土壤和植被

C．历史和文化 D．政治和经济

【2】西北地区总体人口稀少，但局部地区人口分布较集中，此类地区大多

A．海拔较低，热量充足 B．地处山麓，临近河流

C．矿产丰富，工业发达 D．平原广阔，土壤肥沃

【3】关于我国民族分布的说法，正确的是

A．各民族杂居，少数民族分散分布

B．少数民族相对集中在西北、西南和东南地区

C．少数民族相对集中在中部地区

D．少数民族相对集中在西北、西南和东北地区

【答案】

【1】A

【2】B

【3】D

【解析】

试题分析：

【1】人口、聚落分布区，主要是自然条件适宜生产、生活的地区，对我国人口分布格局起决定性作用的主要是地形和气候，A对。土壤和植被分布受地形、气候的制约，B错。历史和文化、政治和经济是人口分布格局形成后出现的，C、D错。

【2】西北地区总体人口稀少，但局部地区人口分布较集中，此类地区大多地处山麓，临近河流，水源较充足，适宜人类居住，B对。西北地区属于第二阶梯，海拔较高，热量没有优势，A错。西北地区矿产丰富，工业不发达，C错。沙漠面积广，土壤肥力较差，D错。

【3】我国民族分布的特点是各民族大杂居，小聚居，少数民族相对集中在西北、西南和东北地区，D对。A、B、C错。

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