单词：chitin synthetase
chitin synthetase的用法和样例：
例句
- Chitin synthase is the important enzyme that convert UDP-GlcNAc to chitin.几丁质合成酶是生物合成几丁质的关键物质。
单词：chitin synthetase 相关文章
material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi
Scientific American(十二)月
经济学人音频版 Unit5:Leaders-Spain and ETA
经济学人音频版
This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? Worldwide, we know of enough uranium to power today's nuclear reactors for another hundred years according to the nuclear energy agency. But scientists say t
Scientific American(八)月
avulse, vt （由于意外事故或通过外科手术）把（身体的一部分）撕脱；抽出 【反】link（vt 连结）；suture（vt 缝合）
不择手段背单词
IN THE NEWS -January 12, 2002: International Monetary Fund By Caty Weaver This is Steve Ember with the VOA Special English program, In the News. A team from the International Monetary Fund completed a
教育与新闻
《Falling Slowing》夺得第80届奥斯卡最佳电影歌曲奖 And won't return And part of me Wants to hide The part that's burned Once, once Knew how to talk to you Once, once But not anymore Hear the sirens call me home Hear the sirens call me
奥斯卡最佳英文歌曲
BOB DOUGHTY: This is SCIENCE IN THE NEWS, a program in VOA Special English. Im Bob Doughty. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today we tell about the development of what scientists are calling a synthetic cell a cell produced by people inste
2010年VOA慢速英语(七)月
By Jordan Davis Dakar 23 October 2006 Chad's government says it has regained control of two eastern villages after rebel advances on Sunday. Meanwhile, several Chadian rebel groups appear to have reached a new unity accord. Humanitarian workers in E
2006年VOA标准英语（十月）
By Gilbert Da Costa Abuja 29 June 2006 Two Nigerian journalists arrested for a story on a presidential aircraft have been released on bail by a court in Abuja Thursday. -------- The federal high court in Abuja has ordered the release of the two jour
2006年VOA标准英语（六月）
French police officers are seen near the house where anti-terrorist agents arrested four suspected members of the Basque separatist group ETA in Bayonne, southwestern France, 20 May 2010 French and Spanish authorities have arrested six alleged member
VOA标准英语2010年(五)月
The Basque separatist group ETA has declared a permanent ceasefire. The group has waged a violent campaign to form an independent state in northern Spain and southwest France. A video posted on the website of Basque newspaper Gara shows masked people
VOA标准英语2011年(一月)
Only a few horses have won the Triple Crown, three grueling thoroughbred races held every spring. Some four decades ago, one horse who did achieve that pinnacle of American racing became a national hero, along with the woman who owned and believed in
VOA标准英语2010年(十)月
By Al Pessin Washington 19 May 2006 U.S. military guards at the Guantanamo detention center fired rubber shotgun pellets and used batons and shields to put down a small but violent riot by detainees T
2006年VOA标准英语（五月）
By Al Pessin Pentagon 06 September 2006 The U.S. government has transferred 14 alleged terrorist leaders to the detention facility at Guantanamo Bay, Cuba, the first new arrivals at the controversial facility in two years. The men are some of the mo
2006年VOA标准英语（九月）
By Matt Steinglass Hanoi 13 November 2006 A U.S.-based human rights group says Vietnamese authorities are taking homeless children off the streets of Hanoi in the run-up to international events such as this week's Asia Pacific Economic Cooperation s
2006年VOA标准英语（十一月)
今年《美国偶像 American Idol》的亚军获得者可爱乖巧人见人爱的小David Archuleta终于抢先推出了自己的第一只单曲Crush，他也是《美国偶像》第7季结束后第一个推出单曲的选手。Crush的主题是一见钟情，倒也很符合小David的形象和性格，小David的第一张专辑将于11月份
音乐咖啡厅
By Al Pessin Washington 12 June 2008 The U.S. Supreme Court has ruled that terror suspects at the Guantanamo Bay detention center have the right to challenge their detention in U.S. civilian courts. President Bush says he will try to work with Congr
VOA标准英语2008年（六月）
By Deborah Tate Capitol Hill 11 July 2006 Guantanamo detainees (file photo) The Bush administration for the first time has acknowledged that all detainees held by the U.S. military are subject to the protections under the Geneva Conventions. The Pen
2006年VOA标准英语（七月）
The United Nations' special envoy on Burma has met with detained Burmese opposition leader Aung San Suu Kyi, to discuss political reform in the military-run country. But it is not clear if the military's top leader will grant him a similar meeting.
VOA标准英语2009年(二月)
今天我们要学的词是, retain。 Retain, 是保持、保留的意思。在本届女足世界杯上，德国击败巴西，蝉联冠军， Germany retained the Women's World Cup title. 与此同时，美国帆船队在西班牙连续第三次赢得
英语单词荟萃