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2015年PETS4考试写作精选短语29
发布时间:2010/7/3 18:14:20 来源:城市学习网 编辑:admin

  Rule of 72
  a common formula used to determine the years needed for money to double at compound interest; divide 72 by the interest rate to get the number of years
  EXAMPLE:
  According to the rule of 72, $10,000 invested at 6 per cent interest doubles to $20,000 in twelve years.

  Rate of return
  the yield, or amount of profit, produced from an investment
  EXAMPLE:
  The risk involved with investing in certain new technology companies was high, but they consistently produced a strong, 30 per cent rate of return

  Seasonal variation
  predictable changes in sales volume, business activity, or inventory due to the changes of seasons during the year
  EXAMPLE:
  Seasonal variation within the American toy industry is heavily influenced by Christmas holiday shopping.

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