答案:B
解析:
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.
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答案:B
解析:
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.