单选

This computerized system will probably save _____ of the checkout clerk’s time.

  • A.as much as 45 percent
  • B.45 percent as much as
  • C.as much 45 percent as
  • D.as many as 45 percent
参考答案
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The word “commercial ” in the 2nd paragraph means _____.

  • A.advertisement
  • B.business
  • C.notice
  • D.motion picture

To manufacturers, TV advertising is the most efficient way to promote sales because _____.

  • A.TV can make advertisers aware of their products
  • B.it can convince people of the quality of their products
  • C.TV covers a large audience at the same time
  • D.it can be seen and heard by over 25 million local viewers
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