单词:water culture experiment
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65 野火的燃烧会造成汞污染 ENVIRONMENT REPORT September 7, 2001: Mercury Pollution in WildfiresBy George Grow (Start at 59
[ti:UNIT 4 Look into Science! Lesson 30: Keep the Candle Burning!] [0:00.733]UNIT 4 第四单元 [0:02.636]Look into Science! 走进科学! [0:05.638]Lesson 30: 第30课 [0:06.956]Keep the Candle Burning! 让蜡烛燃烧! [0:09.491]THINK ABOUT IT
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?
AMERICAN STORIES - Doctor Heideggers Experiment by Nathaniel Hawthorne MARIO RITTER: Now, the VOA Special English program, AMERICAN STORIES. (MUSIC) We present the short story Doctor Heidegger's Experiment by Nathaniel Hawthorne. Here is Barbara Klei
Agriculture Report - Water Problems and the World 农业报道 - 水问题对全球影响 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 A new American intelligence report says water-related probl
Doctor Heideggers Experiment by Nathaniel Hawthorne We present the short story Doctor Heidegger's Experiment by Nathaniel Hawthorne. Here is Barbara Klein with the story. That very unusual man, old Doctor Heidegger, once invited four friends to meet
Unit 4 [00:02.98]Look into Science!How Can a Paper Have One Side? [00:10.63]A piece of paper has two sidess. [00:15.07]See?This piece of paper has a white side and a pink side. [00:22.44]In this experiment,In this experiment,we make a piece of paper
They say that all's fair in love and war. But when it comes to making a deal, people have very definite ideas about what's fair. A recent study found that people will let a basic physiological need go unfulfilled rather than accept an unfair transact
[00:07.62]Listening Listen to the song Waltzing Matilda [00:12.65]and fill in the gaps in you book. [00:32.10]Oh,there was once a swagman [00:35.19]camped in a billabong, [00:37.01]under the shade of a coolibar tree. [00:40.89]And he sang as he looke
[00:05.13]High in the mountains, [00:06.71]they found a stream and a waterfall. [00:09.38]They drank water and then decided [00:11.08]to hide in one of the caves [00:12.43]under the waterfall. [00:14.78]That evening,the hunters arrived [00:16.97]and
25 Years Later: Biosphere 2 Lives On An unusual scientific experiment ended 25 years ago when eight people walked out of a miniature Earth called Biosphere 2. Biosphere 2 is a collection of large, connected buildings in the American state of Arizona.
The film Dark Water directed by Walter Salice opened over the weekend. It is the latest in a wave of American remakes of Japanese horror-films. In fact two of the most successful horror movies in recent years were adaptations of films from Japan: Th
[ti:UNIT 4 Look into Science! Lesson 31: Surprise Your Friends!] [0:00.598]UNIT 4 第四单元 [0:02.622]Look into Science! 走进科学! [0:05.152]Lesson 31: 第31课: [0:07.589]Surprise Your Friends! 让你的朋友们吃惊! [0:10.533]To: 寄:
[ti:UNIT 4 Look into Science! Lesson 26: One Wet Danny?] [0:00.493]UNIT 4 第四单元 [0:02.588]Look into Science! 走进科学! [0:04.930]Lesson 26: 第26课: [0:06.840]One Wet Danny? 丹尼湿透了吗? [0:09.028]THINK ABOUT IT! 想一想 [0
Lesson 31: [00:03.50]What Lucas Says [00:06.87]Hi!I'm Lucas.I had fun with the experiments in this unit.Did you? [00:15.23]I really liked the weird mud.I put a little cornstarch into a dish. [00:22.07]Then I put a little water into the cornstarch.It
UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi
Lesson 32: [00:03.50]What Do You Know?Have You Seen These Words? [00:09.38]air [00:12.02]What's inside a balloon?Air! [00:16.69]basket empty [00:21.45]I have no food in my refrigerator.My refrigerator is empty! [00:28.81]fill [00:31.27]I fill my back
AILSA CHANG, HOST: We're going to take you back now to the late 1800s, when eating food in the U.S. meant taking a calculated risk. The country was growing. People were moving into cities. And industrialization gave food producers new, sometimes dang
THAT VERY SINGULAR man, old Dr. Heidegger, once invited four venerable friends to meet him in his study. There were three white-bearded gentlemen, Mr. Medbourne, Colonel Killigrew, and Mr. Gascoigne, and a withered gentlewoman, whose name was the Wid
Whiskey Does You Good 威士忌对你有好处 A professor of chemistry wanted to teach his class a lesson about the evils of alcohol, so he produced an experiment that involved a glass of water, a glass of whiskey and two worms. 化学老师要给班里