It is a widely agreed point of view that the ( ) of policies to conserve energy nationwide will inevitably involve personal sacrifice.

A. implementation

B. manifestation

C. demonstration

D. Expedition

【答案】A。人们一致认为，在全国范围内实施节能政策，不可避免会地伴随个人牺牲。implementation“实施，履行”，implement policy是固定搭配，意思是“实施政策，执行政策”;manifestation“表示，表明”;demonstration“示范，证明”;expedition“远征，远足”。根据搭配和句义，本题选A。