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主题：[The Official SAT Question of the Day™] November 15th Saturday

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Currently rising temperatures in the Arctic and Antarctic are ------- of a still warmer world that could result from an excess of atmospheric carbon dioxide produced by the burning of oil, gas, and coal.
A. polarities
B. harbingers
C. vestiges
D. counterexamples
E. aftereffects

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SAT题目：http://apps.collegeboard.com/qotd/question.do

楼主 Date: 2008-11-15 20:59:27

jasontomonaga

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Hint : The words “of a still warmer world that could result” are a clue that the answer involves indicating or predicting a future event.

沙发 Date: 2008-11-15 21:00:23

jasontomonaga

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Correct Answer: B

Here's Why: A harbinger is a sign of something yet to come. Temperatures are presented as “harbingers” in this sentence because they show that “a still warmer world” might be coming.
Difficulty: Hard
Question Type: Sentence Completions
(Critical Reading)

板凳 Date: 2008-11-15 21:03:19

小雄

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Correct Answer: B

4 楼 Date: 2008-11-16 10:33:31

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