[語文] PP97SC---我想知道they代替誰??
(29753-!-item-!-188;#058&003991)
Industrialization and modern methods of insect control have improved the
standard of living around the globe while at the same time they have
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introduced some 100,000 dangerous chemical pollutants, having gone virtually
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unregulated since they were developed more than 50 years ago.
(A) while at the same time they have introduced some 100,000 dangerous
chemical pollutants, having
(B) while at the same time introducing some 100,000 dangerous chemical
pollutants that have
(C) while they have introduced some 100,000 dangerous chemical pollutants at
the same time, which have
(D) but introducing some 100,000 dangerous chemical pollutants at the same
time that have
(E) but at the same time introducing some 100,000 dangerous chemical
pollutants, having
雖然不是考點
但我看不大出來since後面的they是指Industrialization and modern
還是chemical pollutants
有人說代名詞要代最近的
有老人說代名詞優先代替主詞
請指教
謝謝
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