单选题 To maintain a leading position in the market, companies have to develop products which are cheaper, more ______ and more reliable than those of their competitors.
  • A. innovative
  • B. commensurate
  • C. enlightening
  • D. legitimate
【正确答案】 A
【答案解析】[解析] 各项的意思是：innovative“创新的，革新(主义)的”；commensurate“相当的，相称的”；enlighten“启发，启蒙，教导”；legitimate“合法的，合理的，正统的”。