试管婴儿有风险吗？

In the 24 years since the birth of Louise Brown，the world's first test－tube baby，thousands of would－be parents have been assure that as far as scientists knew there was no extra risk of genetic damage associated with in－vitro fertilization，

高二(单元) Unit13-18

[00:00.00]Albert Einstein communist Alexander Bell professor [00:05.00]艾伯特爱因斯坦 n.adj.共产主义者(的)亚历山大贝尔 n.教授 [00:10.00]ruler scientific darkness shy [00:14.79]n.统治者 adj.科学的 n.黑暗 adj.害羞的 [00:

美国国家公共电台 NPR Sperm Counts Plummet In Western Men, Study Finds

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

听电影学英语-朱诺 08

[00:02.22]Its a Pilates machine. 那是普拉提机 [00:07.02]You dont make anything. 它不是用来制造的 [00:07.22]What do you make with it? 拿它来制造什么东西？ [00:09.66]Its for exercising. 是用来健身的 [00:10.30]Yeah, my wife

六人行FriendsMP3 3-3

The One With the Jam -------------------------------------------------------------------------------- Written by: Wil Calhoun Transcribed by: Eric Aasen -----------------------------------------------

生活大爆炸之精子银行(1)

TBBT101-1生活大爆炸之精子银行（1） Sheldon: So if a photon is directed through a plane with two slits in it and either slit is observed it will not go through both slits. If its unobserved it will, however, if its observed after its left

生活大爆炸之精子银行(2)

TBBT101-2 生活大爆炸之精子银行（2） Leonard: Sheldon, this was your idea. A little extra money to get fractional T1 bandwidth in the apartment. Sheldon: I know, and I do yearn for faster downloads, but theres some poor woman is going to p

生活大爆炸之精子银行(3)

TBBT101-3 生活大爆炸之精子银行（3） Leonard: Well, what do you want to do? Sheldon: I want to leave. Leonard: Okay. Sheldon: Whats the protocol for leaving? Leonard: I dont know, Ive never reneged on a proffer of sperm before. Sheldon: Le

高中英语人教版高二下讲解04

[00:45.58]1)Where Bruce like to go today? [00:51.54]He wishes he could go to the seaside today. [00:59.12]2)What are Bruce and Li Qun talking about? [01:06.85]They are talking about the sea,holidays,jobs and Li Qun's cousin. [01:15.68]Language points

男性避孕药实现重大新突破

英国科学家在男性避孕药研发上有了重大突破，未来男性有可能通过口服阻止精子游动的药丸来达到避孕效果。这可能改变千千万万伴侣的性生活。以后不仅女人可以吃避孕药，连男人都有避

男女通用避孕药即将问世

A contraceptive pill that could be taken by men as well as women could be on the horizon. 一种男女通用的避孕药即将问世。 A breakthrough in the understanding of the biology of sperm could lead to a unisex version of the Pill, US governm

【文摘】男性生物钟

Tick-tock, tick-tock. Is that your biological clock? And if it is, are you female? Most people think biological clocks are strictly female phenomena, with infertility and the risk of certain diseases

高露洁全效牙膏中的三氯生可能致癌

A chemical that has been linked to cancer cell growth is being used by millions of Americans in toothpaste every day, it has emerged. 在成千上万的美国人每天使用的牙膏中，可能存在一种导致癌细胞增长的化学物质。 The

低头党注意！常常玩手机的九大风险

1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车，

Concerns arise over sperm donors

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

Researchers make sperm from stem cell in dish

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

将来生孩子不再需要妈妈？

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

热门单词：“捐精”用英文怎么说？

近日，淘宝聚划算发起了一场名为聚精会神的团购活动，除了提供司法鉴定服务以外，还上线了7个城市的精子库，预约捐精的志愿者可获得3000至5000元不等的捐精补助。 请看《中国日报》的报

英语听书《白鲸记》第373期

First: According to magnitude I divide the whales into three primary BOOKS (subdivisible into CHAPTERS), and these shall comprehend them all, both small and large. 第一 我按照大小,把鲸分为主要的三篇(各篇再分为章),这就把它们不

英语听书《白鲸记》第692期

And thus, through the courage and great skill in obstetrics of Queequeg, the deliverance, or rather, delivery of Tashtego, 这样，靠了魁魁格的胆识和采用手段高明的产科学即接生法， was successfully accomplished, in the teeth,