单选题 To survive in the intense trade competition between countries, we must ______ the qualities and varieties of products we make to the world market demand.
  • A. improve
  • B. enhance
  • C. guarantee
  • D. gear
【正确答案】 D
【答案解析】[解析] 本题意为“为了在国家之间激烈的贸易竞争中幸存下来，我们必须使我们生产的产品的质量和品种适应世界市场的需求”。D项的“gear to使适应”符合题意。如：Education should be geared to children's needs.(教育应适合学生们的需要)。其他三项“improve改善”；“enhance提高，增进，增强”；“guarantee保证，担保”都不正确。