Most economists believe that the five-day work week has had a positive （）on our economy.
A、
influence
B、
affect
C、
after-effect
D、
effect
【正确答案】：D
【题目解析】：
大多数经济学家认为，五天的工作周对我们的经济产生了积极的影响。effect影响（一般指积极影响），符合句意。
Most economists believe that the five-day work week has had a positive （）on our economy.
Most economists believe that the five-day work week has had a positive （）on our economy.
influence
affect
after-effect
effect
大多数经济学家认为，五天的工作周对我们的经济产生了积极的影响。effect影响（一般指积极影响），符合句意。