Project Procurement Management includes the contract management and change control processes required to administer contracts or purchase orders issued by authorized project team members.

项目采购管理包括合同管理和变更控制过程，它们是管理由授权的项目团队成员签发的合同或采购订单所必需的。

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D. Procurement Documentation, Contract Change Control System, Payment System, Contract.

采购文档，合同变更控制系统，支付系统，合同。

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C. Procurement Documentation, Contract Change Control System, Payment Schedule, Contract Management Plan.

采购文档，合同变更控制系统，支付进度表，合同管理计划。

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