由于项目很少会准确地按照项目管理计划进行，因而变更控制必不可少。

Change control is necessary because projects seldom run exactly according to the project management plan.

youdao

由于项目很少会准确地按照项目管理计划进行，因而变更控制必不可少。

Change control is necessary because projects seldom run exactly according to the project management plan.

youdao