单词：biological potency
单词：biological potency 相关文章
To celebrate the holidays we are releasing a free lesson from our recent business English audio /e-book: Presenting for Success. Free copies of the transcript and online activities for this episode will also be available to listeners on Christmas Day
商务英语演讲课
Broadcast: Jan 10 2003 The Pentagon has issued a statement 2) asserting the military is prepared to protect its personnel from possible biological weapons attack. On the surface, the Pentagon's assert
VOA2003（上）-健康之旅
Lesson 20 Snake poison 蛇毒 First listen and then answer the following question. 听录音，然后回答以下问题。 What are the two different ways in which snake poison acts? How it came about that snakes manufactured poison is a mystery. Over
新概念英语第四册
And now that soft hand was laid gently on the pony's neck, and a single low word spoken. 眼前，那只温柔的手轻轻放在小马驹的脖颈上，姑娘轻声慢语地对它说话。 How instantly were the tense muscles relaxedhow quickly the s
美国语文第五册
But, how could this help to solve the mystery of the haunting rock paintings created by their ancestors? Having read the Blake papers and found out about altered state of consciousness or trance on th
人、艺术、世界
Vaccines are desperately needed in the developing world. Even when theyre available and inexpensive, theres still a major problem: most vaccines need to be refrigerated. Reaching the relevant populations often means traveling to areas where electrici
Scientific American(七)月
贮存的英语常用表示法是Storage.本项中常用的一些短语有： store （keep）in a cool and dry place 存于于阴凉干燥处 away from light 避光 away from children 勿让儿童接触 protect from light （heat） 避光（热）
医学英语
Asia 亚洲 Cyclones and climate change 飓风与气候变化 The new normal? 习以为常？ Physics suggests that storms will get worse as the planet warms. But it is too early to tell if it is actually happening 物理学研究表明全球变暖将导
经济学人综合
By Lisa Schlein Geneva 20 November 2006 U.N. Secretary-General Kofi Annan is urging nations to do more to combat biological weapons, and to create global safeguards to keep them out of terrorist hands. Kofi Annan at a review conference on Biological
2006年VOA标准英语（十一月)
AGRICULTURE REPORT - Biological Controls, Part 1 By Mario Ritter Broadcast: Tuesday, April 13, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biological controls are living
农业与发展
It's a frustrating thing most of us have experienced. 大多数人都有过这种沮丧的经历。 A song gets stuck inside of your head, seemingly playing on a permanent loop. 你的脑海里总回荡着一首歌，这歌似乎还处于循环播放模
阅读空间
Breaking up the Treasury 财政部分裂 Your money or your life 要钱还是要命？ The knives are out for Whitehall's mightiest department 利刃直指白厅最强大的部门 TONY BLAIR once kidnapped a civil servant. It was 2005 and the then pr
经济学人商业系列
Israel Practices Biological Attack Response The Israeli government has carried out a two-day exercise it says is aimed at boosting preparedness for any terrorist attack aimed at sparking an outbreak of a highly contagious disease. Israeli officials e
VOA标准英语2011年(十二月)
Walnuts are the healthiest of all the nuts and should be eaten more as part of a healthy diet, US scientists say. 美国科学家称核桃是所有坚果中最为健康的一种，应该作为健康饮食的一部分多吃。 Scientists from Pennsylv
趣味英语
Idiom: Roll the dice ( try to do something ) Hit the book: Union Jack Confine to Context Silver fern Cut-through Sight Etch Conjure up grit 1.A flag is meant to be flown Flags should be highly visible symbols of a nation's presence. Because the curre
趣味青春英语
Britain Dug prohibition 英国 禁毒 Banning the east African stimulant may backfire 东非的兴奋剂禁令可能会适得其反 OUTSIDE a newsagent's shop in the Clapham Road, a south London thoroughfare, a man sucks on a rolled-up cigarette and
经济学人文艺系列
Breaking up the Treasury 财政部分裂 Your money or your life 要钱还是要命？ The knives are out for Whitehall's mightiest department 利刃直指白厅最强大的部门 TONY BLAIR once kidnapped a civil servant. It was 2005 and the then pr
经济学人文艺系列
Married Love is the subtitle of the opera Fidelio. A woman disguises herself as a man in order to rescue her husband from prison. It's perhaps not too fantastic or surrealistic to think that his obsession with the Fidelio theme which after all he wen
英语听力：文化博览2008年
It is plain, then, that phrenologically the head of this Leviathan, in the creature's living intact state, is an entire delusion. 于是，很明白，从骨相学上说来，在大鲸活着而毫无损伤的时候，它的头就全然是一种使人迷
白鲸记
If this be so, fancy the irresistibleness of that might, to which the most impalpable and destructive of all elements contributes. 如果这个臆测是对的话，那么，请想一想那种最难解而又最具有破坏力的种种原质所提供的那
白鲸记