要注意，代文宁定理不仅适用于直流电路，也适用于交流电路。

It is to be noted that Thevenin s theorem applies to AC as well as to DC circuits.

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负责这项研究的康奈尔大学教授贝丝·莱文斯顿与圣母大学蒂莫西·贾齐和西安大略大学查理斯·赫斯特一起开展分析她表示，“管理者”会奖励那些卑鄙的行为，只为息事宁人。

Professor Beth Livingston, of Cornell University, New York, who led the study, said managers were rewarding nasty behaviour.

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19世纪，欧洲探险家大卫·利文斯敦和约翰·汉宁等人来到这里寻找尼罗河的源头。

In the 19th century European explorers like David Livingstone and John Hanning Speke came here searching for the source of the Nile.

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