The map shows the various distribution of DM including both rich and poor countries.
图示糖尿病的广泛分布，包括贫穷国家在内。
This article is a study in Xi 'an DM Group, which is in Northwest China's largest building materials distribution and building materials wholesale market one of the top 10 nationwide.
本文的研究对象是西安DM集团，该集团是我国西北地区最大的建筑材料集散地和全国十大建材批发市场之一。
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