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【单选题】
联合国气候变化框架公约》最核心的原则是A.
共同但有区别的责任原则
B.
公平原则
C.
可持续发展原则
D.
无悔原则
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反馈参考答案：
举一反三
【简答题】When I (arrived/was arriving), the party was in full swing. Paul was dancing with Mary, and Pat and Peter were drinking champagne.
【简答题】The Labour Party was the first party in Britain that______.
【单选题】The reason why I missed the party was that my car was _________ in the traffic jam.
A.
held up
B.
hung up
C.
broken up
D.
kept up
【简答题】Describe in some detail the room in which the party was held?
【多选题】During the period of 1979-1997 when the Conservative Party was in office, the British goverment adopted the following policies.
A.
reducing old age pensions
B.
privatizing state-owned industries
C.
controlling the power of the trade unions
D.
emphasizing on the minimum wage and supplementing low incomes.
【多选题】变频调速过程中，为了保持磁通恒定，必须保持（）
A.
变频器输出电压不变
B.
变频器输出电流不变
C.
压频比不变
D.
U/F不变
E.
U•f不变
F.
输出功率不变
【简答题】The party was in _______ _________ when the police burst in. 晚会正进行得热火朝天的时候,警察闯了进来。
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