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【简答题】
多哈（25°16' N，51°31'E ）气候变化大会于当地时间2012年12月8日20时闭幕，《京都议定书》作为具有法律约束力的减排框架得到了维持。据此，回答下题。 小题1:多哈气候变化大会闭幕时，北京时间约为 A．9日1时 B．8日24时 C．9日2时 D．8日15时 小题2:节能减排可以削弱 A．太阳辐射，从而增强大气对太阳辐射的削弱作用 B．地面辐射，从而增强大气对地面的保温作用 C．大气辐射，从而减弱大气对太阳辐射的削弱作用 D．大气逆辐射，从而减弱大气对地面的保温作用
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