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【题目】读下面两图,回答下列问题。

1图中A山脉有典型的丹霞地貌,该处丹霞地貌是由红色砂岩和砂砾岩组成的低山丘陵,下列关于丹霞地貌发育过程中经历的地质作用(下图中阴影表示的是红色砂岩或砂砾岩)正确的排序是

A. ④①③② B. ③④①② C. ④①②③ D. ①②③④

2某地理研究小组在B处研究并绘制了近地面的等压面示意图(图乙),关于该图的判断,正确的是

A. C地多晴朗天气 B. C地气温低于F地

C. 图中气压F>C>D>E D. F地盛行上升气流

【答案】

1C

2C

【解析】试题分析:

1】形成丹霞地貌的岩层是沉积岩,所以这里必然先形成洼地,然后发生了沉积作用。后来又有地壳抬升,岩层隆起,高出地表,如图所示。最后被外力侵蚀,形成丹霞地貌,所以正确的顺序是④①②③C对。

2】根据图中等压面分析,F气压高,C地气压低。所以C地是上升气流,多阴雨天气,A错。F地盛行下沉气流,天气晴朗,D错。根据气压与气温的关系,C地气温高于F地,B错。根据热力环流原理,图中气压F>C>D>EC对。

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