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 国家开放大学 / 汽车电工电子基础

题图所示电路,对外电路来说可以等效为


 


理想电压源E与电阻R串联

理想电流源IS与电阻R并联

理想电压源E

理想电流源IS
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  • 影响沟通的个人因素主要来自()。外部障碍 信息发出者 信息接受者 内部障碍地域文化(本)
  • 园长要想成就工作,成为有效的管理者,必须管理好时间。()正确错误幼儿园管理
  • Of swimming and football he much preferred _____. A、  later B、 the later C、  former D、 the former英语4
  • 1.Listen and fill in the blanks. 00:00/02:09 Hello everybody. Welcome to the American Language Center. I’m Gina Richards, your academic 1 . You can all just call me Gina. I know today is your first day at our school, so you’re probably a little 2 and maybe a little shy, too. So, I want to tell you right at the beginning: if you don’t understand something, please ask questions. OK? And listen very carefully because we’re going to give you a 3 of important information — information that will make your experience here enjoyable and useful. Okay, here we go. Let me tell you about the plan for today. There are three things on your 4 . First, you will take a placement test. This test will 5 your English level. You’ll take a reading, grammar, and composition test. Oh, and also listening. A listening test. The whole placement test takes three hours. Next, you will meet in small groups, with a teacher, for an orientation. This 6 meeting will be about important things you need to know, like where to buy your books, what type of classes you’ll have, how to find a 7 , things like that. This is where you can ask a lot of questions. Then, finally, this afternoon, you will take a campus 8 . We’ll show you the main buildings where your classrooms are; you’ll see some of the sports 9 , you know, the tennis courts, the swimming pool, places like that; and you’ll also visit the library and the computer lab. I think you’ll be surprised how large and how beautiful our campus is. All right. Are there 10 questions before we begin?高级英语听说(1)
  • 预算定额与施工定额单位往往不同。预算定额的计量单位一般按照工序或施工过程确定;而施工定额的计量单位主要是根据分部分项工程和结构构件的形体特征及其变化确定。 安装工程估价
  • 10[填空题] 19世纪,德国著名教育家______所著的《____》在西方被视为“科学教育学”形成的标志,他的教育思想被视为传统教育派的代表。油画(静物、 写生)