含氮化合物

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(202) / 评论(0) 分类 初级英语听力新版

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(151) / 评论(0) 分类 英语语法 Grammar Girl

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(118) / 评论(0) 分类 Scientific American(一)月

Intonation can indicate completely different meanings for otherwise similar words or phrases. For example, an English teacher teaches English, but an English teacher is from England; French class is where you study French, but French class is Gallic

发表于:2018-12-27 / 阅读(107) / 评论(0) 分类 美式英语正音训练

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(104) / 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(129) / 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(170) / 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(152) / 评论(0) 分类 Scientific American(七)月

AGRICULTURE REPORT - Scientists Find Compound in Smoke that Helps Seeds Grow By Mario Ritter Broadcast: Tuesday, July 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. A di

发表于:2019-01-11 / 阅读(153) / 评论(0) 分类 农业与发展

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(130) / 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(125) / 评论(0) 分类 VOA标准英语2011年(四月)

The United Nation's World Food Program says rogue members of Somalia's extremist al-Shabab group attempted to raid its compound late Sunday in the Somali town of Wajid, about 300 kilometers northwest of Mogadishu. World Food Program spokesman, Peter

发表于:2019-01-14 / 阅读(190) / 评论(0) 分类 VOA标准英语2009年(八月)

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(105) / 评论(0) 分类 托福英语

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(198) / 评论(0) 分类 2018年VOA慢速英语(十二)月

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(151) / 评论(0) 分类 经济学人综合

By Elizabeth Carlassare. Todays topic is compound interest. Albert Einstein is often quoted as having said something to the effect that compound interest is the greatest wonder of the universe. Its an urban legend, but it packs some punch! In todays

发表于:2019-01-30 / 阅读(177) / 评论(0) 分类 货币英语

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(133) / 评论(0) 分类 农业与发展

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(111) / 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(90) / 评论(0) 分类 大学四六级阅读

ISLAMABAD, Feb. 25 (Xinhua) -- The living compound of the former al-Qaida chief Osama bin Laden in Pakistan's northwest city of Abbottabad is being demolished, said one local media report. Local Urdu TV channel Express said that the front part of bin

发表于:2019-02-18 / 阅读(124) / 评论(0) 分类 英语新闻
学英语单词
all-sort
American laurel
antisymmetrical function
Armenian bole
avons
balling-iron
be in full play
be in gaol
blister figure
booster circuit
Bromus japonicus
burgeon forth
c/f
carvomenthol
chlorophthalic acid
collective prophylaxis
communicable-disease center
concept coordination
cotton prints
cystosarcoma
drafts and telegraphic transfers
dropdead
extra-metabolite
film resilience
fire alarms
forthshowed
full support
gemmations
grey's
guffing
hand speed
heazlewoodite
homodihydrocapsaicin
hydraeomyces halipli
hyperparameter
idol star
in the garb of
induction chamber
innovation waves
institutional care
issue of government bond
jarana (mexico)
joke with
klinometers
kube
Kuwait City
laughing academy
lift efficiency
loadless
machine-head
minilaser
monkey bite
Moromoro, R.
muscle system
Navajo Indian Reservation
new brain
new-home
nonlocking shift character
not care a stiver
olizumab
osada
oscillopsia
overdrive protection
pass-through facility
passe-garde
path combination
pickmires
Picrothomsonite
place hour angle
point heater
post-mortem examinations
Primula latisecta
pulse ceilometer
pyrite marcaite
Qeesil
quadratic electrooptical tensor
reach-in freezer
reader position
reasonable wear and tear
record oriented data transmission
reference association
registration of title
renew cartridge
repair by welding
sarong party girls
Saussurea chowana
Say.
sedruns
self irradiation effect
smicker
stage circulation
still-frame
superpurgative working table
t.f
tertiary float feed
theory of launch vehicle trajectory
trademark registration fee
turreted steamer
vadose cave
way-bent
what someone said
yukoes