单词：radium emanation (radon)
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[00:00.00]Unit 6 text A Improving Industrial Efficiency through Robotics [00:04.24]通过机器人技术提高工业效率 [00:08.49]Robots,becoming increasingly prevalent in factories [00:14.73]and industrial plants throughout the developed world, [00:17.41]在机
大学英语自学教程下
[00:42.81]Lesson 1 1 Dialogue [00:48.46]Four doctors are at a medical conference. [00:53.32]A:Which speech are you going to listen to this afternoon? [00:58.36]B:I haven't decided.There's a talk on cancer that might be quite interesting, [01:05.23]so
高中英语人教版高三
[00:02.25]第一单元 居里夫人 [00:04.49]Lesson 1 [00:05.97]第一课 [00:07.44]1 Dialogue [00:09.21]1 对话 [00:10.97]Four doctors are at a medical conference. [00:13.34]四个医生在医学会议上 [00:15.70]A:Which speech are you going to
高中英语人教版2000年高三
玛丽居里（Marie Skłodowska Curie，1867-1934年）世称居里夫人，全名：玛丽亚斯克沃多夫斯卡居里。 法国著名波兰裔科学家、物理学家、化学家。1867年11月7日生于华沙。 1903年，居里夫妇和贝克勒
英语名人堂
Predicting Earthquakes Can earthquakes be predicted? Scientists are working on programs to predict where and when an earthquake will occur. They hope to develop an early warning system that can be use
有声英文阅读
Marie Curie was born in 1867. She is one of the greatest scientists ever to have lived. She was a pioneer in the field of radioactivity and discovered the chemical elements radium and polonium. Curie is the only person ever to win two Nobel Prizes in
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Can earthquakes be predicted? Scientists are working on programs to predict where and when an earthquake will occur. They hope to develop an early warning system that can be used to forecast earthquakes so that lives can be saved. Earthquakes are the
双语有声阅读
[00:39.99]1.Is it a good conference this year? [00:44.75]No,not as good as last year's. [00:50.81]2.Do you think speaker D will go to listen to a speech? [00:58.17]No,he's not going to any speech. [01:03.32]Instead,he's going out for a walk. [01:29.8
高中英语人教版高三
Today the U.S. government keeps an eye on health and safety in the workplace. But that wasn't always the case. Americans workers can thank a little-known factory worker for sparking the sweeping changes that now protect them on the job. Worker traged
VOA标准英语2011年(一月)
MARY LOUISE KELLY, HOST: In the early days of the 20th century, radium factories in New Jersey and Illinois employed mostly women to paint watch faces and clock faces with luminous paint. The paint got everywhere - hair, hands, clothes. They were cal
2017年NPR美国国家公共电台4月
Chapter 13 Good Progress 第十三章 进展顺利 Far into the night, while the other creatures slept, Charlotte worked on her web. 深夜，当其他动物睡觉时，夏洛还在它的网上干活。 First she ripped out a few of the orb lines nea
夏洛的网
对于即将走出校门的毕业生来说，一封吸引人的求职信是进入理想企业的敲门砖。下面就是一位毕业生应聘实习销售代表的求职信。这封信言辞恳切，并且突出了他建立良好人际关系的能力。
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Marie Curie was born in 1867. She is one of the greatest scientists ever to have lived. She was a pioneer in the field of radioactivity and discovered the chemical elements radium and polonium. Curie is the only person ever to win two Nobel Prizes in
世界名人简介
Steve: Hi, this is Steve. I'm going to talk about Japanese Onsen. Onsen is like a public bath, where men go, or women, in separate areas of course, and enjoy very hot baths. I like it very much because it's very relaxing and it's very healthy. They h
英语趣味课堂