The problem of global warming is serious. ，the sea levels have risen a little.
A. As a consequence
B. On the contrary
C. In a nutshell
D. In other words
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(答案→)A. As a consequence
B. On the contrary
C. In a nutshell
D. In other words
解析：此题考查短语辨析。as a consequence“结果”；on the contrary“相反地”；in a nutshell“简短地说”；in other words“换句话说”。句意：全球变暖问题很严重。结果，海平面上升了一些。