What is the annual mean temperature in Beijing?
北京的年平均气温是多少?
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Urban heat island effect on annual mean temperature during the last 50 years in China.
在中国近50年期间年平均温度对城市热岛影响.
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EXPLAIN WHY station III has the highest annual mean temperature among the three stations.
解释为何三个气象站中气象站三有最高的年平均温度?
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