[医] 硝酸酐, 五氧化二氮

初级英语听力(新版) Lesson17 What's the postage on these letters to Thailand, please? I'll have to check. Do you need anything else? Yes. A three pence stamp, please. That'll be eighty-five pence in all. I wish you wouldn't have your TV so lou

发表于:2018-12-01 / 阅读(157) / 评论(0) 分类 初级英语听力新版

You probably already know everything is made up of little tiny things called atoms 你也许已经知道所有的东西都是由微小的原子组成。 You might even know that each atom is made up of even smaller particles called protons, neutrons

发表于:2018-12-08 / 阅读(62) / 评论(0) 分类 TED演讲教育篇

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(68) / 评论(0) 分类 Scientific American(一)月

AGRICULTURE REPORT - Bird Flu: Composting the Remains of Farm BirdsBy Mario Ritter Broadcast: Tuesday, February 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Farmers usuall

发表于:2019-01-02 / 阅读(73) / 评论(0) 分类 2006年慢速英语(二)月

AGRICULTURE REPORT - Legumes: Good for People and SoilBy Bob Bowen Broadcast: Tuesday, February 21, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Many different kinds of plants

发表于:2019-01-02 / 阅读(55) / 评论(0) 分类 2006年慢速英语(二)月

Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa

发表于:2019-01-02 / 阅读(85) / 评论(0) 分类 VOA2003(上)-科技导航

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(114) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(98) / 评论(0) 分类 Scientific American(七)月

This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(88) / 评论(0) 分类 VOA慢速英语2007年(六)月

Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2011年(四月)

The ice bucket challenge may seem cool if you live in a place which is usually quite hot, but for those who dwell in a cold climate the idea is probably less impressive. 冰桶挑战看起来相当酷,但前提是你处在热带地区。而对于那些

发表于:2019-01-16 / 阅读(68) / 评论(0) 分类 英语新闻

托福考试(TOEFL)是国际上最有影响力,使用最广泛的的英语水平测试之一。托福除了作为美国主流学校入学所需的标准化考试,申请签证和工作的过程中也会有需要托福成绩的机会,所以不少

发表于:2019-01-18 / 阅读(74) / 评论(0) 分类 托福英语

The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式,现在,人类不

发表于:2019-01-26 / 阅读(108) / 评论(0) 分类 经济学人综合

AGRICULTURE REPORT — November 26, 2002: Corn, Part 1 By Mario Ritter This is the VOA Special English Agriculture Report. Corn is an important crop in many parts of the world. However, some people ar

发表于:2019-01-30 / 阅读(94) / 评论(0) 分类 农业与发展

1. It is one of natures great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants leaves are bathed in a sea of nitrogen gas.(3+)下述情形真可谓是自然界的一个莫大讽

发表于:2019-02-01 / 阅读(57) / 评论(0) 分类 GRE英语

GRE阅读复备考之类比思维。考生在做gre阅读复习过程中也可以运用类比的思维解题。在GRE阅读中绝对不少见,也就是常说的类比题。主要说下述哪一选项所述现象和原文第N行的说法比较相像

发表于:2019-02-17 / 阅读(67) / 评论(0) 分类 GRE英语

1.Above all:最重要的是,most important of all Above all, theyll have to discover how much nitrogen it possesses since nitrogen is4/5 of the air breathe.(2002-1) 2.Account for:解释。说明 How do you account for the truth? 3.After

发表于:2019-02-18 / 阅读(54) / 评论(0) 分类 大学四六级阅读

LOS ANGELES, March 6 (Xinhua) -- U.S. researchers have successfully used certain microbes to produce biofuels(生物燃料), opening a door to developing cheaper green energy. The discovery was made by researchers at the University of California, Los

发表于:2019-02-18 / 阅读(59) / 评论(0) 分类 英语新闻

In the days of diving suitsthe sort that were connected to the surface by long hoses, 在使用潜水衣即用长管子连接水面的那种装备的年代, divers sometimes experienced a dreaded phenomenon known as the squeeze. 潜水员有时候会

发表于:2019-02-25 / 阅读(60) / 评论(0) 分类 万物简史

However, when at length they emerged into the fresh air of a London evening, 然而,当他们最后走进伦敦夜晚的新鲜空气里的时候, the bubbles sprang instantly to fizziness, memorably enlivening the digestive process. 气泡立刻泛

发表于:2019-02-25 / 阅读(58) / 评论(0) 分类 万物简史
学英语单词
absorption spectroanalysis
An Binh
at the pump
Bedelē
bill of loading
buddy team (system)
character positioning
charge temperature
cheneau
circumferential measurements
Cissampelopsis corifolia
computer system failure
Contra Costa County
cosequence
dataswitching
decomposition water
dedolomitisations
depositional fabric
Dushai
eight-hour day
emotional buying motives
emotional tone
ex-trotskyist
exhaustion shock
Ficus subulata
financial law
foscari
gallon oil can
Ganane
gas examination
gastrodisk
giraffe unicycle
has nothing to do with
have something out
hemostatics
heuristic search
high and mighty
high hydraulic valve
hollande
hydraulic servo actuator
hyperbox
indoor tennis court
industrial waste treatment
inosilicate
intergrapes
intializtion applets
ITU-TSS
jack planes
jelly filled capacitor
Kangaslampi
karst collapse column
lazariss
leatherjacket
Lithocarpus synbalanos
magna assisa eligenda
magnetic meridian plate
Masud
method of steepest descent
metrophlebitis
myoelastic fiber
nasopharynioma
non-selective pitch propeller
noninclusion
Onor, Gora
optical frequency converter
parametric phase-locked oscillator
pasques
phex
production of shaft kiln for unit cross section
pulmonic sounds
R&B
radio-frequency communication
rate of weapons innovation
re-embrittlement
reference body
rhaphuma testaceiceps
richmond
sailing orders
seriah
shalaporia
shiplines
skin actinomycosis
Smyshlyayevka
square coarse file
status statistics
sulci palatini
superior colliculi
syndrome of exuberance of lung heat
Syntrichia
systemtransposition
Tengolan, I.
the service
trett
ultracryotomy
underlying trust
urogenital pore
valenciennea sexguttata
vehicle maintenance and repair network
viatical settlement
Zeph.
zoogenetic infection
Zoquean