【单选题】More and more teaching _______ are being developed across the globe, which are sure to _______to make classroom teaching more lively and interesting. [ ]
【单选题】项目干系人管理知识领域通过识别干系人映射到_____ 过程组。(140703班秦依帆译)The project stakeholder management knowledge area maps to the _____ process group by identifying stakeholders.
【简答题】More and more cheaper materials are being ____ for the better, more expensive kind in production. A.replaced B.displaced C.substituted D.transformed