单词：activity factor of B (in a liquid or a solid mixture)
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[00:00.00]Module 1 Location [01:56.79]Unit 1 Look,12 lizards on a log. [02:03.53]Activity 1 [02:12.28]Listen and point. [02:16.65]Look,12 lizards on a log.Where? [02:26.49]There. On the log. [02:30.54]1,2,3,4,5,6,7,8,9,10,11... [02:43.60]Only eleven
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[00:00.00]Module 6 [00:03.29]Unit 2 Old MacDonald has a zoo. [00:09.64]Activity 1 [00:13.19]Sing. [00:21.63]Old MacDonald has a zoo.E|E|O! [00:33.38]And at that zoo he has some lions.E|E|O! [00:40.33]With roar here,roar there, [00:45.09]here a roar,t
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Lesson 27: [00:03.58]Let's Do an Experiment! [00:07.24]One Experiment,Two Theories [00:11.81]A theory is an idea.A theory predicts what will happen. [00:18.57]An experiment shows what happens. [00:23.25]BRIAN:Did you read about this experiment,Danny?
河北加拿大版初中英语
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Usually, we trust common sense to solve problems. Is a runny mixture too thick? Add some fluid. Thatll make it runnier. Except when the fluid makes it th
Scientific American(二)月
unit 571 探望同事 dialogue 英语情景对话 A:Excuse me. Could you give me the room number of Mr. Thomas? A:劳驾，请问托马斯先生住在那个病房？ C:Just a moment. He is in Room 307. C:稍等，他在307号病房。 A:How are you f
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Last time we talked about how astronauts eat and drink under weightless conditions in space. Today we'll cover the next question kids love to ask-how do astronauts go to the bathroom in space? It may sound silly, but it's really a good question, beca
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The Mysterious Liquid In Yogurt When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from? To solve the mystery of the liqui
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It may sound silly, but its really a good question, because weightlessness does make a visit to the latrine a tricky proposition. Weightlessness poses two main problems in the bathroom. The first is that an astronaut could drift away from the bowl at
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[00:00.00]Module 6 [00:03.40]Unit 3 It's tall. [00:08.75]Activity 1 [00:12.09]Listen and point. [00:19.36]It's tall. [00:24.01]It's fat. [00:28.37]It's long. [00:33.20]It's thin. [00:38.27]It's big. [00:43.62]Activity book Module 6 [00:54.67]Unit 3 [
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[ti:UNIT 4 Look into Science! Lesson 32: Unit Review] [0:00.000]UNIT 4 [0:01.873]Look into Science! [0:04.086]Lesson 32 [0:05.447]Unit Review [0:07.036]Ⅰ. Building Your Vocabulary [0:10.383]A. Fill in each blank with the proper word or phrase from
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Magmas 岩浆 Have you heard about liquid rock? 你听说过液态岩石吗？ It might sound funny to you. 这听起来可能很好笑。 How can a rock be liquid? While it can be. 岩石怎么可能是液体呢？但有时它还真是。 If the tem
与美国小学生一起学英文第8册
Gas 气体 There are three different kinds of matter. They are solids, liquids and gases. 物质分三种：固体、液体和气体。 Gas has no shape, so you can't touch gas. 气体本无形，所以你触摸不到。 Gas moves very freely. 气体能
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This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So
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This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So
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This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So
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归纳拓展跟动名词作宾语的动词 考虑建议盼原谅(consider/suggest/advise,look forward to, excuse, pardon) 承认推迟没得想（admit, delay/put off,fancy） 避免错过继续练（avoid, miss, keep/keep on, practise） 否认完成停
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Lesson 57 Sulphur 第57课 硫 Did you ever have to take a mixture of brimstone and treacle? This mixture has not a pleasant taste, but it is a useful medicine; and if it will do us good, we should not care much whether it has a nice taste or not. 小朋
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French fries are delicious. French fries with ketchup are a little slice of heaven. 我们都知道炸薯条很好吃，再配上番茄酱简直就是人间美味。 The problem is it's basically impossible to pour exactly the right amount. 但问题是
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Take a look out your window, put on your glasses if you wear them. 向窗外张望一下，有必要的话，戴上眼镜。 You might want to grab a pair of binoculars, too, or a magnifying lens. 也许你还想拿副望远镜或是放大镜。 Now,
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You know, he said, in an important voice, 你们知道，他用郑重其事的声音说， I've thought all along that that pig of ours was an extra good one. 我已经想通了，我们这只小猪是一只特级好猪。 He's a solid pig. That pig
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