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【题目】下列区域具有明确边界的是

行政区 自然带 热量带

干湿地区 三江平原 山东省青岛市

A. ①②③ B. ③④⑤ C. ①⑤⑥ D. ①⑥

【答案】D

【解析】试题分析:

本题考查区域的概念。区域具有一定的面积、形状、范围和界线,有明确的区位特征,其内部某些特征相对一致,并与其他区域有所区别。区域具有明确的区位特征,但不一定具有明确的界线,一般行政区划具有明确的界线,而自然区划一般没有明确的界线,界线具有过渡性。所以本题选择C选项。

1)一定范围的地理空间、一定的面积、形状、范围和界线、一定指标划分。

2)有明确的区位特征。

3)区域内部某些特征相对一致,区域与区域之间有明显的差异性。

4)区域并非都有明确的界限。有的有明确的界限,如:行政区;有的区域边界具有过渡性质,如:干湿区。

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