单词：endosperms
单词：endosperms 相关文章
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
Scientific American(七)月
Science and technology. 科技。 Exercise and addiction. 锻炼也会上瘾。 Fun run. 奔跑的奥秘。 People, it seems, have evolved to be addicted to exercise. 人类似乎在进化过程中对锻炼上瘾了。 AS THE legions of gym bunnies a
经济学人科技系列
[00:32.38]秋天 [00:46.38]It started with a chair. 故事得从这椅子说起 [00:48.42]∮Once∮ [00:51.42]∮I loved∮ [00:57.70]∮It was the world to me∮ [01:04.02]∮I cried∮ [01:04.46]∮Once∮ [01:10.14]∮At the thought I was foolish
听电影学英语-朱诺
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
Topic1-Men's Health Day and sperm quality issue Today (October 28th) marks the 17th World's Men's Health Day, with this year's theme focusing on male infertility. The latest figures from the largest sperm bank in China show that only 19.4 percent of
英语角-圆桌会议
Science and technology 科学技术 Exercise and addiction 锻炼也会上瘾 Fun run 奔跑的奥秘 People, it seems, have evolved to be addicted to exercise 人类似乎在进化过程中对锻炼上瘾了 AS THE legions of gym bunnies and jogging
经济学人科技系列