全程从题干文字出发，逐句拆解题意，用红色字体标注题干中的关键条件（如数字、限定词、问题核心），用蓝色字体突出解题的关键思路（如公式、逻辑关系、步骤节点），用绿色字体标注最终结论或主题词。 分析过程需按 “读题→提取信息→关联知识点→推导步骤→得出答案” 的顺序逐步推进，每一步讲解配合对应文字高亮，确保逻辑清晰。”---**Question Stem:** 2024年春季，江西省婺源县篁岭梯田上，金灿灿的油菜花竞相开放，蔚为壮观。当地大力打造以“赏花经济”为特色的“农业+旅游”融合新业态，助推乡村振兴。如图示意婺源部分村落及周边地区等高线地形。据此完成下面小题。 **Options:** A. 地形以平原为主 B. 地势南高北低 C. 地势东北高西南低 D. 地形以盆地为主 **Chart/Diagram Description:** * **Type:** Contour map (等高线地形图). * **Main Elements:** * The map displays a mountainous/hilly terrain with numerous contour lines indicating varying elevations. * **Contour Lines:** * The contour interval appears to be 100 meters, with labeled contour lines at 400m, 500m, 600m, 700m, 800m, and 900m. * Elevations range from below 400m (in river valleys) to above 900m (at mountain peaks). * In the northwest part of the map, elevations increase from approximately 400m to over 800m towards a peak. * In the southeast part, elevations increase from approximately 500m to over 900m towards a peak. * **Rivers:** Two main river systems are depicted by thick, curved lines. * One river flows from the northwest (near the 400m-500m contour lines) generally towards the east-southeast, then turns south. Contour lines bend upstream where they cross rivers, indicating the river flow direction. * Another river system is in the southwest, with tributaries flowing into a main stream that also appears to flow generally south/southeast. * **Villages (村落):** Four villages are marked with a striped oval symbol and labeled with Chinese characters: * **甲 (Jia):** Located in the east-central part, near the 700m contour line, beside a river valley. * **乙 (Yi):** Located in the west-central part, near the 400m contour line, beside a river valley. * **丙 (Bing):** Located in the southwest part, near the 400m-500m contour lines. * **丁 (Ding):** Located in the far southwest, near the 400m contour line. * **Peaks:** Two prominent peaks are indicated by triangular symbols with elevation values (or implied from surrounding contours): * One peak in the northwest is above 800m. * Another peak in the southeast is above 900m. * **Labels/Annotations:** The numeral ① is present in the east-central part of the map. * **Overall Topography:** The map shows a region dominated by hills and mountains, characterized by steep slopes and river valleys. It is not a flat plain or a basin. * **Elevation Trend/Slope:** * The highest elevations (above 800m and 900m) are generally in the northwest and southeast. * Lower elevations (below 400m, 500m) are found in the central and southwestern river valleys. * Observing the contours, the terrain generally slopes downwards from the northwest towards the southeast, and from the northeast towards the southwest, but more generally, it is high in the north/northeast and relatively lower in the south/southwest. The area contains both high peaks and low river valleys. * **Legend:** * ~400~ 等高线(m) - Contour line (meters) * 河流 - River * 村落 - Village