单词：diploid chromosome numbers in some animals
单词：diploid chromosome numbers in some animals 相关文章
90 numbers words numbers amount count hundreds thousands millions dozen couple pair double triple quadruple first second third fourth add plus minus deduct multiply divide roughly approximately equal several phrases third time lucky have sixth sense
情景英语口语100主题
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
[00:00.86]Another endangered species, [00:02.83]the Yangtze Dolphin,is China's only fresh-water [00:06.53]dolphin and is sometimes called' the panda [00:09.35]of the Yangtze River'because it is so rare. [00:13.11]its numbers are decreasing for severa
北师大版高中英语模块8(选修)
Numbers: Everyone's language [00:08.70]How many languages do you know? [00:13.45]Everyone knows at least two his or her own language [00:22.52]and the international language of numbers. [00:28.45]Ancient numbers [00:32.21]In ancient times, [00:36.15]
北京仁爱英语八年级下
Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have
Scientific American(十二)月
Idiom: Like a moth to a flame ( doing something attractive and dangerous ) Hit the book: Potion Disability Inspire Down syndrome Chromosome
趣味青春英语
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
今天文章讲的是男性基因染色体的问题，如果男性染色体正发生着变化，会造成地球上男女比例失衡吗？ Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. R
一起听英语
During the last ice age, rapid swings in temperature occurred within decades or less, meaning populations of organisms had to adjust quickly to new environments or face extinction. 在最后一个冰河世纪中，温度在数十年甚至更短的时间
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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
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
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
A Just stop and think how important numbers are to our lives. Numbers control us. In fact, we are numbers. We have passport numbers, social security numbers, ID numbers, and more. We live in a house and a street that has a number. We communicate with
纯正英语一分钟
As 2014 comes to a close, it's time to reflect on the most futuristic breakthroughs and developments of the past year. Here are 15 predictions that came true in 2014. 2014年已经过去，现在来总结过去一年中最具前瞻性和影响力的重
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Autism 自闭症 Why it's not Rain Woman 为什么它不是雨女 Women have fewer cognitive disorders than men do because their bodies are better at ignoring the mutations which cause them 与男性相比，患有认知障碍的女性较少，因为她
经济学人科技系列
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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