在下列各项中谁具有达到项目质量目标的多种职责 （）

A seller has withdrawn from a project midway though execution and another seller is taking over . The project manager meets with the replacement seller and his crew . In this meeting, what should the project manager do FIRST ？

项目范围/章程的基准包括 （）

招投标的基本原则不包括()。

风险识别的内容有()。