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。

youdao

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。

youdao

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。

youdao