2. 外语
  3. As mainstream chip production technology shifts from one generation to the next every three to five years, plants with new techn

As mainstream chip production technology shifts from one generation to the next every three to five years, plants with new techn

admin2012-02-18  76
问题 As mainstream chip production technology shifts from one generation to the next every three to five years, plants with new technology can make more powerful chips at lower costs,______plants with outdated equipment, which often cost billions of dollars to build, will be marginalized by the maker.
选项 A、because
B、even though
C、while
D、since
答案C
解析 本题中plants with new technology与plants with outdated equipment，make more powerful chips at lower costs与will be marginalized by the maker是对比关系，空格处应填表示对比的主从连接词，因此C项为正确答案。
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