2. 外语
  3. It has been ______ that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the tota

It has been ______ that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the tota

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问题 It has been ______ that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
选项 A、calculated
B、estimated
C、measured
D、valued
答案B
解析 词义辨析。解析estimate vt.估计，估价；calculate计算，推算；measure测量，计量；value vt.估价，评价，重视。相关记忆evaluate评价，估计，求……的值；assess估定，评定；guess v.猜测，推测；reckon猜想，估计，看作，计算，考虑到；appraise评价，估价，鉴定。
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大学英语四级

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