单选题
The manager is seeking some cost-effective methods that can call forth their initiative.
A. efficient B. conventional C. economical D. unique
【正确答案】
C
【答案解析】[解析] 划线词cost-effective adj.“有成本效益的,划算的”;四个选项中A项efficient adj.(直接)“生效的”;B项conventional adj“惯例的,传统的”;C项economical adj.“节约的,经济的”;D项unique adj.“唯一的,独特的”。译文:经理正在寻求廉价的方法带动他们的积极性。