2. 外语
  3. From industrial beginnings in the nineteenth century, plastics______through a hundred and twenty years of glory, failure, disrep

From industrial beginnings in the nineteenth century, plastics______through a hundred and twenty years of glory, failure, disrep

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问题 From industrial beginnings in the nineteenth century, plastics______through a hundred and twenty years of glory, failure, disrepute and suspicion on the slow road to public acceptance.
选项 A、struggled
B、have struggled
C、are struggling
D、has struggled
答案B
解析 从选项的区别点来看，此题的考点是时态，这时考生就应该回到题句中找时间状语，已给的或暗示的。这个句子的时间状语是from industrial beginnings…(不是inthe nineteenth century)"从工业革命初期"，暗含"从那时起到现在"，所以要用现在完成时。
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