[单项选择]{{B}}Passage One
Questions 26 to 28 are based on the passage you have just heard.
{{/B}} A. in warm air B. in cold air C. when it reaches the polar region D. only when the clouds are down low
参考答案:A 答案解析:[听力原文]
When can airplanes climb quickly
理解题。在Airplanes can’t climb as high or as quickly in col
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第1题: [单项选择]我国积极开展应对全球气候变化国际合作坚持的责任原则是( ) A. 共同 B. 有区别 C. 共同但有区别 D. 积极合作 参考答案:C 答案解析:[精析] “十二五”规划纲要第六篇(绿色发展建设资源节约型、环境友好型社会)第二十一章(积极应对全球气候变化)第三节(广泛开展国际合作)指出，坚持共同但有区别的责任原则，积极参与国际谈判，推动建立公平
