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1·In our country, there are several problems existing between urban infrastructure construction and realty business development.

我国城市基础设施建设和房地产开发之间存在诸多问题。

2·In the paper, put forward some specific countermeasures by analyzing problems existed in cost management of our country realty development business.

本文就目前我国房地产开发企业成本管理中存在的问题进行分析，提出具体对策。

3·Using without authorization the common parts or common facilities of the realty to carry out business operations.

擅自利用物业共用部位、共用设施设备进行经营的。