This text has decided to research the first problem , namely the validity of the contract.
本文选择了第一个问题进行研究，即合同是否有效的问题。
Namely, the first part is a brief summary of the project supervision system.
第一部分是对建设监理制度的概述。
Namely, the first part is a brief summary of the project supervision system.
第一部分是对建设监理制度的概述。
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