单词：sperm mother cells
单词：sperm mother cells 相关文章
Health Report - A Way to Make New Eggs in Women? 健康报道 - 产生新卵子的新途径 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 New research could raise hope for women who are having trouble
2012年VOA慢速英语(二)月
His name is Moby and for now this rehabilitation tank in Galveston is the stranded infant whale's only home and care-givers like Heidi Watts are his only family. Because he is so tiny and hasn't learned any survival skills for the wild, he unfortuna
万花筒2007年
Choosing to Be a Single Mother 选择成为单身妈妈From VOA Learning English, this is the Health and Lifestyle Report.American actress Marisa Tomei won an Academy Award for her work in the 1992 movie My Cousin Vinny. People laughed when they s
2015年VOA慢速英语(三)月
RACHEL MARTIN, HOST: A wide-ranging study shows that sperm counts are plummeting throughout the Western world, and scientists don't know why. NPR health correspondent Rob Stein suggests some of the potential reasons. ROB STEIN, BYLINE: In Margaret At
2017年NPR美国国家公共电台7月
Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On this Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm an
英语听力广播—Listening
《英语流行话题阅读:语境识词3500》Unit71:寻找代孕母亲
英语语境识词
Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s
原版英语小短文
Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells
与美国小学生一起学英文第10册
Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On todayss Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm
英语听力文摘 English Digest
Science and Technolgy. 科技。 reproduction. 人类繁衍。 Life begins at 45. 45岁也能生娃。 Hope for older mothers. 高龄母亲的福音。 WHEN it comes to reproduction, men have it easy. Almost to the end of their lives most have an amp
经济学人科技系列
生活大爆炸第一季第八集_3：The Grasshopper Experiment -Raj：I can't believe I'm sitting here next to little Lalita Gupta. 真不敢相信我就坐在小Lalita Gupta旁边。 -Lalita：Well, you are. 你已经坐了。 -Raj：Little Lalita
生活大爆炸第一季
近日，《科学》杂志在线报道称，剑桥大学的科学家们通过使用两种干细胞以及一个三维支架，成功地创造出了一个能够自行组装的结构，其发育和构造非常接近自然的小鼠胚胎。科学家的研
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Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they
英语新闻
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
Science and technology 科学技术 Human reproduction 人类繁衍 Life begins at 45 45岁也能生娃 Hope for older mothers 高龄母亲的福音 WHEN it comes to reproduction, men have it easy. 讲到繁衍，男人表示压力很小。 Almost to
经济学人科技系列
With his smiling mother and aunt, this is little Fionan Terry in one of the first portraits of his extraordinary family. 这是一张小菲奥南特里与满面笑容的妈妈和小姨一起拍的第一张照片，记录了他们特殊的一家人。
英语新闻
Scientists say early experiments suggest it may one day be possible to make babies without using eggs. 科学家称，早期实验表明，将来某一天或许不需要卵子就能孕育出婴儿。 They have succeeded in creating healthy baby mice
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so now, Starbuck saw long coils of the umbilical cord of Madame Leviathan, by which the young cub seemed still tethered to its dam. 这时，斯达巴克所看到的，就是这般情况。原来是一条鲸太太的一大卷脐带，而那条小鲸似
白鲸记
Nor did the procedure fulfil any unmet medical need. 此程序也未能满足任何未知医疗需求。 For the child whose genome was edited to confer resistance, the claimed benefit is protection from a virus that she may never encounter 对于为产
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