单词：electropositives
n. 正电性物质；电正（性）物质
单词：electropositives 相关文章
什么是RB? RB的全名是 Rhythm Blues，一般译作节奏怨曲。广义上， RB可视为黑人的流行音乐，它源於黑人的Blues音乐，是现今西行流行来和摇滚来的基础，Billboard杂志曾介定 RB为所有黑人音乐，除
英文语法词汇
The Hammerheads Hammerhead These unique sharks have heads resembling flattened, T shaped hammers. But how would such a weird head evolve? One hypothesis is that having their eyes spaced far apart might give these sharks better 3D vision. Another hypo
英语时差8，16
Frog census volunteers misinterpreted recorded frog sounds in the field, leading researchers to suspect that frog populations may be even lower than thought. Declining frog populations are considered an indicator of environmental damage. But new rese
60秒科学
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t
火星生命
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute Declining frog populations are considered an indicator of environmental damage. But new research finds that frogs might be doing even worse than we thou
Scientific American(八)月
By Gilbert da Costa Abuja 11 February 2008 Nigeria's leading environmental group has endorsed plans by the government to restrict the importation of used computers, in an attempt to control a growing e-waste disposal problem. From Abuja, Gilbert da C
VOA常速英语2008年（二月）
Stop making the eyes at me, I'll stop making the eyes at you And what it is that surprises me is that I don't really want you to And your shoulders are frozen (cold as the night) Oh, but you're an explosion (you're dynamite) Your name isn't Rio, but
英文最新流行歌曲
This handout illustration image created by Australia's Electro Optic Systems (EOS) aerospace company shows a view of the Earth from geostationary height depicting swarms of space debris in Low Earth Orbit (LEO), 20 Jul 2010 Australian researchers say
VOA标准英语2010年(七)月
Larry和李华一起坐地铁回家。今天我们要学两个常用语：get the ball rolling和mull it over. LH: Larry, 这两天天气真好，我看，过不了多久树就要发芽了。我真巴不得春天马上就到。 LL: Me too. I can't wa
美国之音《流行美语》
The Hammerheads Hammerhead These unique sharks have heads resembling flattened, T shaped hammers. But how would such a weird head evolve? One hypothesis is that having their eyes spaced far apart might give these sharks better 3D vision. Another hypo
英语时差8，16
Grammar Girl here. Todays topic is appositives. Guest-writer Bonnie Trenga writes, Today we have to decide if information is essential or extra, because if its extra well need some extra commas. The concept Im referring to is called an appositive. A
英语语法 Grammar Girl
I Bet You Look Good on the Dancefloor Arctic Monkey Stop making the eyes at me, I'll stop making the eyes at you And what it is that surprises me is that I don't really want you to And your shoulders are frozen (cold as the night) Oh, but you're an e
好听的英文歌曲
LANZHOU, Feb. 11 (Xinhua) -- Northwest China's Gansu Province, home to the country's earliest nuclear base, plans to draft a new law on radioactive pollution control this year, the local government said Saturday. Lawmakers in the landlocked province
英语新闻
利用词根记忆GRE词汇是一种较为快捷牢固的方法了，通过词根可以将一连串GRE词汇串联记忆。下面是GRE词汇词根的gram部分，希望能够帮助各位考生快速记忆GRE词汇。 gram = write ,something written
GRE英语