The inventive methods and devices can reduce the complexity for delivering user information, thereby reducing the development costs. 本发明的方法和装置都降低了实现用户信息提供的复杂度，进而降低了开发成本。
Another important aspect that can not be ignored is the introduction of property law, resulting in a land development costs. 另一个不容忽视的重要方面，就是物权法的出台，造成土地一级开发成本的增加。
