单词：alternating current switch machine
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Unit 3 The Working Environment 工 作 环 境 Part One: Expressions 1. Id like to make an appointment to see Mr. Smith, please. 我想预约和史密斯先生见面。 2. Could you tell me where his office is? 你可以告诉我他的办公室在哪儿
英语情景对话-大学生活
Song：Switch Artist：Ashley Tisdale You're out of this world I'm sure of it A crazy intuition, you're up and on, you're here than gone, come back A curious condition And then you switch right over It's weird, yeah I know but Just can't get a hold o
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[00:05.20]Nikola Tesla developed the alternating current power system that provides electricity in the United States. [00:14.42]Many of his other discoveries led to electronic inventions for which other scientists were honored. [00:22.75]Mister Tesla
美国英语听力80篇
Power has been restored to nearly eighty percent of households in the epicenter of the quake. The quake cut off electricity in ten townships in Ludian County. By noon Tuesday, the Yunnan provincial electricity company have brought three 35-kilovolt t
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1) 经常性或习惯性的动作，常与表示频腮度的时间状语连用。 时间状语： every…, sometimes, at…, on Sunday I leave home for school at 7 every morning. 2) 客观真理，客观
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