Over the past decades, sea ice _____ in the Arctic as a result of global warming.
举一反三
- In the past decades, sea ice [u] [/u] in the Arctic as a result of global warming. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: had melted B: has been melting C: melted D: is melting
- The World Wildlife Fund estimates that _______ of Arctic sea ice has disappeared in the past 30 years.
- Most of the global warming observed over the past 50 years is attributable to human activities. ( )
- Global warming observed over the past century has focused attentionon mantled greenhouse gas，presumed to be the likely cause．
- Over the past several decades