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【单选题】
2017年10月10日,被称为“中国天眼”的500米口径球面射电望远镜(简称FAST)新发现2颗脉冲星,成果举世瞩目。FAST是我国重要的科技基础设施之一,项目选址在贵州省黔南州平塘县的“大窝凼”洼地,四周山地围绕,地处偏僻。根据材料,结合下图,回答3-5题。 FSAT所在地形区的特点是
A.
千沟万壑
B.
海拔低,地面平坦
C.
一望无际的沙漠
D.
喀斯特地貌显著
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