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Over the past decades, sea ice________in the Arctic(北极) as a result of global wa
Over the past decades, sea ice________in the Arctic(北极) as a result of global wa
游客
2025-03-04
15
管理
问题
Over the past decades, sea ice________in the Arctic(北极) as a result of global warming.
选项
A、had decreased
B、will decrease
C、has been decreasing
D、is decreasing
答案
C
解析
本题考查时态。根据句意,并结合常识可知冰川随全球变暖从过去几十年到现在一直在减少,所以应该用现在完成时,故选C。句意为:在过去的几十年问,北极的海洋冰川由于全球变暖而变少了。
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