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【题目】下图为我国部分省区2005~2010年人口净迁移率(迁入率与迁出率之差,正数表示人口净迁入。反之为净迁出)与人口自然增长率分布图。读图,完成下列各题。

【1】下列有关我国部分省区2005~2010年人口变化状况的叙述,正确的是

江西省净迁入人口数增加 天津人口增长率大于四川

广东自然增长人口数大于净迁入人口数 贵州人口净减少

A.①② B.③④ C.②③ D.①④

【2】图中人口数量的变化

A.使北京、上海、天津城市用地面积增大

B.引起江西、贵州的人口合理容量增大

C.增强了广东、浙江第一产业的活力

D.使北京、上海人口老龄化问题更加严重

【答案】

【1】C

【2】A

【解析】

试题分析:

【1】读图,根据材料信息,江西省净迁迁率小于0,表示迁入人口数少,是净迁出,错。天津净迁入率和自然增长率都大于0,人口增加率数值大,而四川人口净迁移率小于0,自然增长率大于0,人口增长率较小。所以天津的人口增长率大于四川,对。结合图中数值,广东自然增长率7,人口净迁入率约是1,自然增长人口数大于净迁入人口数,对。贵州人口自然增长率超过7,远大过人口净迁入率,贵州人口增加的多,。C对。

【2】图中北京、上海、天津人口增加率都大于0,人口增长快,城市规模扩大,用地面积增大,A对。影响人口容量的主要因素是资源、科技水平、对外开放度和消费水平,人口数量不是影响人口的合量容量的因素,B错。第一产业是农业,广东、浙江外来人口多,主要是进入城市务工的,主要从事第二、三产业,C错。进入北京、上海的外来人口,多为青、壮年,不会加剧老龄化,D错。

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