Which one of the following is NOT a trade-off decision that must be made in the development of the project plan？

如果项目队员符合以下哪一条例，则成功完成一个多学科项目的机会会增大？（）

对于一个环境治理项目，一个增值变更的例子是：（）

The total amount of risk that is calculated for a project is found by:

德尔菲(Delphi)方法尤其适用于作为一种风险量化技术来：()