单词：primordial germ cells
单词：primordial germ cells 相关文章
gallery -画廊,美术馆 gallon -加仑 gang -(一)帮,(一)伙 gap-缺口,间隙 garbage -垃圾,废物 gardener-园丁 garlic -大蒜 gas -气体,煤气 gasoline -(美)汽油 gaze-凝视,注视 gear -齿轮装置 gene -基因 generally -一般地,通常 generate-生成,产生,引起 generator -发
用mp3背四级单词
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用Mp3背六级单词
A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r
创新英语
Med Students Learn Medical English in Cuba 在古巴医学学生学习医学英语 How can I help you? How long has it been hurting? These are among the sentences that medical students are learning at the Enrique Cabrera Medical School in Havana, Cub
2015年VOA慢速英语(十一)月
Chinese researchers say they have uncovered more evidence of the use of germ warfare by Japanese forces in southwestern China's Yunnan during the Second World War. Su Yi has more. The findings by researchers are suggesting the wide-spread use of prot
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths original atmosphere would have been unpleasantdeadly in factto any organisms that breathe oxygen. There wasnt any. Not until about 2.4 billi
Scientific American(四)月
Today, were talking about vaccines and why theyre so important. 今天，我们要讨论的话题是疫苗，以及注射疫苗的重要性。 Our bodies have an immune system that protects us from infections and diseases. 身体免疫系统可防止感
医学英语轻松学
Alvin didnt like the way the waiter walkedhe projected an air of arrogance. The waiter came to their table with three glasses in one hand and three menus in the other. His thumb and fingers were all over the insides of the glasses. Alvin was disguste
365个英语简短小故事
Thai Beach Made Famous in DiCaprio Film Closes to Tourists The Thailand beach made famous in the Leonardo DiCaprio film The Beach is being closed to give it a break from tourists. The beach sits on Maya Bay on Phi Phi Leh island, off the coast of Tha
2018年VOA慢速英语(六)月
Daylight Turns Thin Plastic Barrier into Germ-Killing Material Daylight-powered germ-killing equipment may someday help protect health workers from deadly microorganisms like Ebola virus disease. That is a finding from a study published in the journa
2018年VOA慢速英语(四)月
Elizabeth washes her hands every day. She likes to wash her hands. She washes her hands with soap and water. She uses soap and water to wash her hands. She uses warm water and soap. She washes her hands for 30 seconds. After 30 seconds she stops wash
超级简单英语阅读
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1953 a student named Stanley Miller did an experiment showing that the simple chemicals present on the early Earth could give rise to the basic buildi
Scientific American(十)月
This is the VOA Special English Health Report. A mother in Tamil Nadu, India, recently had a question for our new series on children and parenting. This woman in Tuticorin has a son who is almost three years old. He attends a pre-kindergarten school.
VOA慢速英语2007年（一）月
今天我们要学的词是germ。 Germ,病菌，细菌。流感季节到了，现在很多家庭都备有洗手液，但是最新研究指出， Hand Sanitizers only work for 2 minutes to kill germs. 洗手液杀菌的功能只能持续两分钟。不
英语每日一词
今天我们要学的词是germ。 Germ,病菌，细菌。流感季节到了，现在很多家庭都备有洗手液，但是最新研究指出， Hand Sanitizers only work for 2 minutes to kill germs. 洗手液杀菌的功能只能持续两分钟。不
英语单词荟萃
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
In the kitchen yesterday, I was considering all of the language that we are exposed to around the house. Containers of food and cleaning fluids can all teach us a lot of a new language. Even some small appliances often have instructions of some kind
英语博客 A cup of English
讲解 Today's key word is Germ Germ g-e-r-m 微生物 细菌 Germ is something that can produce disease. Here is an example: This germ is found on things used by the patients. 这种细菌会附着在病人使用过的东西上。 没错！今天我们
英语悠选脱口秀
A: How's John? B: He's very sick. The doctors are keeping him for several days. A: Have you visited him yet? B: I'm going there today. Would you like to go with me? A: I would like to, but I think I'm coming down with a cold. B: Then you should stay
推理类英语听力
Voice 1 Thank you for joining us for todays Spotlight program. Im Ruby Jones. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 In
环球英语 Spotlight