2. 专升本
  3. With population growth in an ever-shortening cycle, it is rather doubtful whether the earth can provide enough food for mankind.

With population growth in an ever-shortening cycle, it is rather doubtful whether the earth can provide enough food for mankind.

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问题 With population growth in an ever-shortening cycle, it is rather doubtful whether the earth can provide enough food for mankind.
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答案由于人口增长的周期日益缩短
解析 Shorten是由short这一词根变化而来，可以按short的意思去推断in an ever-shortening cycle的意思。
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