perma- __2__frost thawing, coastal erosion, changes in ice sheets and ice shelves, altered distribution and abundance of species.
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becomes more difficult so the ice is weak and may give way.
Changes in climate that had already taken place are manifested __1__from the decrease in extent and thickness of Arctic sea ice
经济方面共同违纪,对违纪集团的首要分子,按照集团违纪的总数额处分(判断题)。