1. nuclear a. 核子的,核能的 2. nucleus n. 核 3. retail n. /v. /ad. 零售 4. retain vt. 保留,保持 5. restrict vt. 限制,约束 6. sponsor n. 发起者,主办者 vt. 发起,主办,资助 7. spur n. /vt. 刺激,激励 8. trium

发表于:2018-12-18 / 阅读(44) / 评论(0) 分类 大学四六级阅读

If the human genome were put in a straight line, it would be over six and a half feet long. So how do you store all that DNA in a tiny nucleus? And have the cell manage it? Researchers explain how in a study featured on the cover of the October 9th i

发表于:2019-01-08 / 阅读(55) / 评论(0) 分类 Scientific American(十)月

Don: I'm trying to write a poem to my sweetheart. Can you think of a good metaphor for love? Yael: How about hunger or thirst? D: I don't know about that. I was thinking something like love is a rose, except less clich. Y: You must be talking about a

发表于:2019-01-22 / 阅读(118) / 评论(0) 分类 英语时差8,16

Genome: Now in 3-D! In a study in the journal Science, researchers report the mapping of the three-dimensional structure of the human genome, and the finding that the cell's nucleus is divided into two regions, one where DNA goes to get expressed. Cy

发表于:2019-01-30 / 阅读(99) / 评论(0) 分类 60秒科学

A (address) resource record / A(地址)资源记录 AAL, ATM adaptation layer / ATM 适配层 ABR, area border router / 区域边界路由器 ABR, available bit rate / 可用的传输率 access con

发表于:2019-02-04 / 阅读(45) / 评论(0) 分类 实用英语

So how can a hormone ultimately affect the rate of aging? 那么,激素到底是怎样影响衰老的速度呢? How could that work? 原理是什么呢? Well it turns out that in the daf-2 mutants, 原来在daf-2变异体中 a whole lot of gene

发表于:2019-02-14 / 阅读(62) / 评论(0) 分类 TED演讲科学篇