单选题 There has been so much ______ in the demand for high-priced bags that several companies are introducing a greater range of price options.
  • A. fluctuation
  • B. repayment
  • C. irrelevance
  • D. invitation
【正确答案】 A
【答案解析】[解析] 词汇：名词 1．这是一道词汇选择题，选项均为名词。 2．从“需求变动的幅度很大，因此引进了多种价格选项”可以看出，A选项fluctuation正确。