[題目] 請教一個閱讀題 [longman preparation series-advanced]

[mints (floating cloud)]

疑問：一個句子的翻譯
書名：longman preparaton series for the new toeic (advanced)
頁數：p.210
題目：第一篇文章中有一段話:
      At its annual stockholders meeting this week, Smith & Co. reported that
      its yearly earnings had tripled from a year ago to $100 million.

     第19題. What were the company's earnings durings the first quarter of
              this year?
              (A) $100 million
              (B) $200 million
           V  (C) $300 million
              (D) $400 million


疑問：上文說的年收益是" 從去年到現在已增長3倍，今年收益是$100 million?
      為何答案是$300 million?
      還是去年是100 million, 增了三倍，今年是300 million?

      請問這句話的正確解釋是什麼?


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