单词：sperm cells
单词：sperm 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
[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:
高中英语词汇
An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ
VOA标准英语2010年(十一)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
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
英语短文：Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra
英语小短文
[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
高中英语人教版高二
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
'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the
VOA标准英语2011年(八月)
Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use
世界各地新闻集锦
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
> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59
科技之光
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
阅读空间
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
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
阅读空间
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
经济学人综合