单词:electronegativation
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38.Love and Learning Most students are often told by their teachers and parents that love is forbidden in high schools,yet there are still some student who fall in love.In their opinion,love can be regarded as a drive in their studies,and they study
In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo
This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin
AMERICAN MOSAIC - October 11, 2002: Question About Native Alaskans / Music by Raphael Saadiq / TV's Oprah Winfrey Wins a Special Emmy HOST: Welcome to AMERICAN MOSAIC --VOA’s radio magazine in Speci
Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺
AMERICAN MOSAIC - 'Betty Rules': Is It Punk? Pop? Alternative? Decide for Yourself By Shelley Gollust,Nancy Steinbach Broadcast: Friday, May 06, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA S
By Dan Robinson Capitol Hill 21 June 2007 Legislation providing $34 billion for State Department and foreign aid programs has sparked sharp debate over a range of issues in the House of Representatives. VOA's Dan Robinson reports, the Bush administra
A: Youre voting, right? B: Yes, I am, but Im not voting for who youre voting for. A: Why is that? B: I dont like that candidate. A: Why dont you like him? B: I do not find him to be very intelligent. A: He is very smart. B: Hes not smart, and I dont
A: Will you be voting? B: I wont be voting for the same person as you. A: Why? B: I really dont like your candidate. A: Whats your problem with him? B: I dont find him very smart. A: He is smart. B: I also dont agree with his policies. A: Hes a fabul
A: Are you going to vote? B: Yes, but not for the person youre voting for. A: Why not? B: I dont like him. A: Whats wrong with him? B: Hes not too smart. A: Thats not true. B: I dont agree with his policies, either. A: I think he is a great candidate
[0:0]efficiency效率,功效 [0:12.1950]elaborate elastic elbow elderly精心计划的,详尽的 橡皮图,松紧带 肘,肘部 较老的,年长的 [1:2.6076]elect electrical electron选举,推选 电的,电气科学的 电子 [1:41.1372]electronic elegant element elementary [2:36.2790]el
But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a
Everyone knows a lot about philosophy, even if they dont know it. We are all philosophers because we all have views and opinions on life. We dont all know about the philosophy that people study as a university subject. I know the names of Aristotle,
Everyone knows a lot about philosophy, even if they dont know it. We are all philosophers because we all have views and opinions on life. We dont all know about the philosophy that people study as a university subject. I know the names of Aristotle,
Slavery is one of the biggest tragedies of our history. The terrible thing is that it still happens today in many countries. It has been around since the beginning of our history. Some experts say that philosophers like Aristotle believed some people
Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom
The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen