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单选题

A．Weather extremes are outcomes of global warming.
B．Weather extremes are not caused by global warming.
C．Weather extremes are not directly related to global warming.
D．Weather extremes will be worsened by global warming.

参考答案C
解析:
One international organization says cold weather does not mean that global warming has decreased.People in Europe are shivering, while people in North Asia and parts of Australia are sweating.(13) Scientists say these weather extremes are to be expected and neither phenomenon can be used as a case for or against global warming．
Secretary General of the international organization says people should not confuse local weather variability with climate change．He says the trend toward global warming is still there．"I think we have to be careful not to interpret any single event as a proof of either warming or the fact that warming has stopped．When scientists look at the global warming, they take into account many, many old possible available evidence．So, we cannot explain any single phenomenon by one single cause．"Average global surface temperatures have climbed significantly since 1850, when historical weather statistics were first recorded．(14) "Global warming will mean that heat waves like the one we got in Western Europe in 2003 will become more frequent．But, it does not mean that the 2003 heat wave was produced by global warming．" He said.
Every year, somewhere in the world weather records will be broken．Every year, exceptional weather events will take place somewhere in the world．( 15 ) Thus, people have to look at the global picture to assess whether climate change is taking place.
Scientists say human activity contributes to climate change, but they do not agree on the pace at which climate change may be unfolding.
What is the relationship between weather extremes and global warming?
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A．The temperature began to increase much faster.
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D．Global warming produced heat wave in many countries.

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单选题

A．Exceptional weather events．
B．Every year's new weather records.
C．The pace of global warming.
D．The weather condition worldwide.

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