如图是我国羽绒服装企业分布图，据图回答下题。

已知$a={\log }_{\frac{1}{3}}2,b={\log }_{\frac{1}{2}}\frac{1}{3},c={\left(\frac{1}{2}\right)}^{0.3}$， 则（  ）．

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（2012•梧州）居住如图房屋的少数民族，他们主要聚居的省区是（　　）