PPP作为公共基础设施及公共服务项目建设的最新模式在国外己经有了成功的应用。

PPP has been successful applied abroad as a new model of public infrastructure construction.

youdao

PPP作为公共基础设施及公共服务项目建设的最新模式在国外己经有了成功的应用。

PPP has been successful applied abroad as a new model of public infrastructure construction.

youdao