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Over the past decades, sea ice is decreasing in the Arctic global warming.
A．as a result of B．on top of C．in front of D．in need of
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Over the past decades, sea ice is decreasing in the Arctic global warming.
A．as a result of B．on top of C．in front of D．in need of
查看习题详情和答案>>Over the past decades, sea ice in the Arctic as a result of global warming.
A．had decreased B．decreased
C．has been decreasing D．is decreasing
查看习题详情和答案>>Over the past decades, sea ice in the Arctic as a result of global warming.
A．had decreased B．decreased
C．has been decreasing D．is decreasing
查看习题详情和答案>>Over the past decades, sea ice _____ in the Arctic as a result of global warming.
| A．had decreased | B．decreased | C．has been decreasing | D．is decreasing |