单词：chromosome sterility
单词：chromosome sterility 相关文章
El condor pasa Simon Lyrics : Paul Simon - Jorge Milchberg - Daniel A. Robles I'd rather be a sparrow than a snail Yes I would, if I could, I surely would I'd rather be a hammer than a nail Yes I woul
赖世雄教你学唱歌
Alice: Hello, I'm AliceStephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to tell stories in my sleep. Al
六分钟英语
austerity, n 节俭（严格节约，经济紧缩）；简朴；艰苦 【例】wartime austerity 战时节俭 【记】au读：诶哟，sterity＝sterility（n 不毛之地）－需要节俭 【反】ostentation（n 卖弄，摆阔）
不择手段背单词
Broadcast: Feb 12,2003 More than 111,000 military reservists around the United States have been plucked out of their civilian lives and called-up to active duty, in support of the U.S. military's 2）
VOA2003（上）-文艺之窗
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
梦游症是会遗传的。 Alice: Hello, I'm Alice Stephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to
一起听英语
Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. Rosie: Hi there. Neil: Well, today we're talking about men. Rosie: That sounds interesting. Neil: It is very interesting especially if you'r
六分钟英语
This is Scientific American's 60-second Science. I'm Cynthia Graber. This will just take a minute. Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quali
Scientific American(六)月
The food industry leads the nation in pounds of waste produced annually. So, whats second? Its health care facilities. They dispose of more than four billion pounds of waste each year. Another shocker? A lot of that waste is perfectly functional. In
Scientific American(三)月
Scientists at the Whitehead Institute in Cambridge, Massachusetts say it's fortunate for humans that the Y chromosome is not on the verge of extinction. That's because the Y is the chromosome that makes males males. The outlook is less favorable for
2005年NPR美国国家公共电台
It's raining again又是一个下雨天 Tell me something I don't know告诉我我不知道的事 This place can make you dizzy这个地方能让你晕头转向 Sweet dream didn't show美梦不会出现 Walked across the finish line走过终点线 Wo
听歌学英语
This is the VOA Special English Health Report. A miscarriage is the natural loss of a pregnancy before the twentieth week. This happens to as many as twenty percent of known pregnancies. Experts say many pregnancies end before a woman even knows she
2010年VOA慢速英语(八)月
16 Million Teenage Girls Get Pregnant Every Year 每年有1600万少女怀孕 Thursday, July 11, is World Population Day and the focus this year is on adolescent pregnancy. Its estimated that 16 million teenage girls give birth every year. Many are i
VOA标准英语2013年(七月)
这是一位自闭症患儿的妈妈写的关于爱和感动的故事： Relax. He is the same little boy you loved yesterday. I smiled trying to hold back the tears. No he isnt. Yesterday I dreamed he would be an astronaut. Today I am hoping he will
英语美文
Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quality have declined over the last few decades. So researchers from two fertility clinics in Spain loo
60秒科学
Doctor: Casual sex harmful to students Casual sex among middle school students may be contributing to growing sterility problems among young women in Guangzhou, capital of South China's Guangdong Prov
趣味英语
Facebook and Apple are offering women employees the chance to put their dreams of motherhood on ice by paying for them to freeze their eggs. The extraordinary perk is aimed at boosting the number of women staff by allowing them to focus on their care
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The warring factions in Afghanistan say they will heed a call by the United Nations to stop fighting so aid workers can begin a three-day polio vaccination campaign. The Taliban, the Afghan army and international military forces say they will halt th
VOA双语新闻 2008年9月
1 Compared with conventional beef, grass-fed beef is higher in this health-promoting nutrient, which gives its fat a yellow color: 1、与传统牛肉相比，草饲牛肉中某种有益健康的营养素含量更高，并让脂肪呈现黄色，这种
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Controversial Chinese philanthropist Chen Guangbiao admitted he cheated in the ALS Ice Bucket Challenge, Sanxiang Metropolis Daily reported on Thursday. 据国内媒体报道，中国最受争议的慈善家陈光标日前承认，他在之前的关注
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