标签：卵子冷冻 相关文章

智慧人生篇章 第12期:同性恋婚姻之争(2)

And of course that's just where the problems lie. Though people on both sides appeal to what is natural, nature unhelpfully supports both sides liking both consistency and variety in gender and sexuality. So most people are male or female, but there

发表于:2018-12-03 / 阅读(59) / 评论(0) 分类 智慧人生篇章

万花筒 2009-02-24&02-25 我是八胞胎的爸爸

The former boyfriend of the California woman who gave birth to 8 babies last month. He is speaking out. His name is Denis Beaudoin. And he thinks that he could be the biological father, not only of the octuplets but possibly Nadya Suleman's 6 other c

发表于:2018-12-11 / 阅读(69) / 评论(0) 分类 万花筒2009年

VOA常速英语2015--试管狗崽挽救濒危品种

试管狗崽挽救濒危品种 These playful puppies are part of litter of seven, born July 10, out of 19 embryos implanted in the same female dog. Five are beagles and two are beagle-cocker spaniel mixes. 7月10日，一窝狗崽出生，研究人员将

发表于:2018-12-16 / 阅读(46) / 评论(0) 分类 VOA标准英语2016年(二月)

美国有线新闻 CNN 美一批冷冻披萨受病菌感染被召回

If you got a frozen pizza in your house, have a look at the label before you bake it. U.S. Department of Agriculture announced last week that more than 21,000 pounds of frozen pizza had been recalled. The foods involved are processed by the RBR Meat

发表于:2018-12-20 / 阅读(54) / 评论(0) 分类 CNN美国有线新闻2017年3月

美国有线新闻 CNN 美国2.1万磅冷冻批萨因可能感染李斯特菌被召回

AZUZ: If you got a frozen pizza in your house, have a look at the label before you bake it. U.S. Department of Agriculture announced last week that more than 21,000 pounds of frozen pizza had been recalled. The foods involved are processed by the RBR

发表于:2018-12-20 / 阅读(56) / 评论(0) 分类 CNN美国有线新闻2017年8月

美国科学60秒 SSS 2013-07-30

This is scientific american 60-secs science. I'm Sophy Bushwick. Got a minute? It takes a white chromosome to make a man, but that does't mean its counterpart, the x-chromosome, plays no part. In fact it has a big role in making sperm. To study x evo

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(七)月

纯正地道美语(外教讲解)246：生命的奇迹

A: Continuing with our class, today we are going to study briefly the miracle of life. Many of you may think you already know how babies come to be, but I am sure that some of the things that we will be talking about today may surprise you. Billy ，

发表于:2018-12-25 / 阅读(58) / 评论(0) 分类 纯正地道美语

英文笑话：biology class 生物课

biology class This happened in a university biology class. The professor was explaining that sperm has a high concentration of dextrose. One freshman girl who looked puzzled asked, Then why doesn't it taste sweet? Notes: 1. This happened in a univers

发表于:2018-12-26 / 阅读(67) / 评论(0) 分类 英语笑话（MP3+文本）

科学家们通过不同的方式拯救犀牛

科学家们通过不同的方式拯救犀牛 The biggest threat to rhinos are poachers who kill them for their horns. 对犀牛而言最大的威胁是偷猎者为了它们的角而将其置于死地。 In spite of a lack of scientific proof, many i

发表于:2019-01-14 / 阅读(35) / 评论(0) 分类 VOA标准英语2015年(十二月)

【跟着英剧练发音】South Pacific S01E03 - C

文本： Aftertheir epic journey from the tropics, the young bull sperm whales have finallymade it. Sperm whales dive deeper than any other whale. They're drawn here bythe fabulous wealth of deep-sea creatures, even the giant squid that lurk inthe d

发表于:2019-01-21 / 阅读(60) / 评论(0) 分类 跟着英剧练发音

英语听书《海底两万里》第68期 第6章 开足马力(10)

While I was observing this phenomenal creature, two jets of steam and water sprang from its blowholes and rose to an altitude of forty meters, 当我观察这只奇怪动物的时候，两道水和汽从它的鼻孔吐出来，直喷到叫十米的高度

发表于:2019-01-28 / 阅读(107) / 评论(0) 分类 《海底两万里》中英双语有声读物

英语听力文摘 English Digest 366、神奇的“鼻子”

Sperm Sniff Out Their Targets 精子靠嗅觉发现卵子 Scientists who study human sperm have long wondered whether human sperm could somehow sense the presence of an egg . Then, just about a decade ago, it was discovered that sperm have protein s

发表于:2019-02-16 / 阅读(71) / 评论(0) 分类 英语听力文摘 English Digest

美国研究生入学考试难句解读-11

Thesequestionsarepoliticalinthe sensethatthedebateoverthemwill inevitablybelessanexplorationof abstractmattersinaspiritof (50)disinterestedinquirythananacademic powerstruggleinwhichthecareersand profes

发表于:2019-02-18 / 阅读(71) / 评论(0) 分类 英文语法词汇

英语悠选脱口秀 第39期:冻卵生娃 晚育福音

讲解: Today's key word is Egg. Egg 卵子 Here, an egg is a cell that is produced in the bodies of female animals and humans. If it is fertilized by a sperm, a baby develops from it. 当一个卵子遇到一个精子，就诞生了一个小宝贝。

发表于:2019-02-21 / 阅读(204) / 评论(0) 分类 英语悠选脱口秀

学个词 Learn a Word-VOA英语教学 2536 felon

今天我们要学的词是 felon. Felon 名词，意思是重犯。Virginia Governor Terry McAuliffe signed an executive order to restore voting rights for roughly 200,000 convicted felons. 美国弗吉尼亚州州长麦考利夫签署行政命令，恢

发表于:2019-02-24 / 阅读(63) / 评论(0) 分类 英语单词荟萃

【英语时差8,16】如何界定性别？2

Another sexual difference among mammals that doesnt hold with other animals is size. In most mammals the male is larger than the female, but in most other animals where there are two distinct sexes, the female is the larger one. Today scientists defi

发表于:2019-03-06 / 阅读(118) / 评论(0) 分类 英语时差8，16

【英语时差8,16】动物界的染色体有何不同？

In mammals, the sex of a baby is determined by the combination of chromosomes it inherits from its parents. Nearly every cell in a male body has two different sex chromosomesone is shaped like an X and one is shaped like a Y. Females also have two se

发表于:2019-03-06 / 阅读(113) / 评论(0) 分类 英语时差8，16
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