氮保存;氮的保存

G: is everything alright? M: yes, everything is fine. G: what took so long? I thought your flight was supposed to arrive 3 hours ago! M: didn't they announce that our flight was delayed? G: I didn't hear anything about a delay. I thought everything w

发表于:2018-11-30 / 阅读(263) / 评论(0) 分类 生活英语情景口语

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(292) / 评论(0) 分类 初级英语听力新版

Here in China the housing maintenance fund is also known as the pension for apartments. Apparently, the fund is to be used for the maintenance and repair of property. However, applying to use the money is an extremely difficulty process. Li Dong has

发表于:2018-12-19 / 阅读(179) / 评论(0) 分类 世界各地新闻集锦

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

Fax machine maintenance A: Excuse me, Richard? Are you busy at the moment? B: Not really, Betty. What do you need? A: My fax machines on the blink. Would you take a look at it? B: Sure. I just need to do one other job first. How about if I come up ar

发表于:2018-12-25 / 阅读(199) / 评论(0) 分类 办公室英语口语

A maintenance appointment A: Hello? Is this the Maintenance Department? B: Yeah. Thats right. What can I do for you? A: Were having a lot of trouble with our printer. Could you come and take a look at it sometime this afternoon? B: Let me see. Yeah,

发表于:2018-12-25 / 阅读(188) / 评论(0) 分类 办公室英语口语

今天我们要学的词是maintenance. Maintenance 维修,养护。The U.S. Interior Department will hike fees at the most popular national parks to $35 a vehicle to raise funds for park maintenance. 美国内政部宣布,全美游客最多的国家

发表于:2018-12-30 / 阅读(181) / 评论(0) 分类 英语单词荟萃

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(165) / 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(183) / 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(302) / 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(285) / 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(237) / 评论(0) 分类 Scientific American(七)月

Key Sentences(重点句子) 142.There seems to be something wrong with the toilet. 我房间里的抽水马桶好像出了点毛病。 143.We'll send someone to repair it immediately. 我们会马上派人来修的。 144.What's the tro

发表于:2019-01-11 / 阅读(203) / 评论(0) 分类 实用英语

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(213) / 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(202) / 评论(0) 分类 VOA标准英语2011年(四月)

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(207) / 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(246) / 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(222) / 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(183) / 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(151) / 评论(0) 分类 大学四六级阅读
学英语单词
AAAT
anti-regular transformation
artificial nuclide
assembly trolley rails
attenuation cross section
auxiliary compressor motor
ballparking
batching by weight
beamformed
Bickerton I.
boytrose
Bruneliana
celibacist
center jump ball
chemical burn of tympanic membrane
color test class
compensatory transaction tax
conservativists
coulombian force
coupling frequency
courtesy of the profession
crawfish out
dance illiteracy
denominators
derma-
die radius
Dimethyl-p-toluidine
dodgertown
drafting twist
edemas
encoffin
findeth
flag ring
flesh-worm disease
flunkydom
free-water surface
gallocatechol
genus Zigadenus
gopak
ground inversion
hearsay rules
Hradiště
ikats
infantile trauma
island arc magmatic association
jaish-i-mohammeds
Kate Greenaway
lemon brown rot
LEPIDOCENTROIDEA
linear AG system
lipometabolism test
liquid helium cooling
liver-complaint
marginal points
meatus acusticus
moie
motional induction
neural tube defects
nonreturn-to-zreo mark
Nīmāshīr
on the decrease
operand segment
orbital road
order quantity report
outslicks
parfries
philippianss
photorotary encoder
Phthiobuzone
plant-medicines
polybenzimidazole resin
precurrer
prosodal
pushery
reduced length of flameproof joint
restriction error
segment of sphere
sensoparalysis
single row machine
skin window
split conical bushing
square ring spanner
stability control
stameniferous
static property
stomach mucous membrane
talocalcaneal joint
telecom stock
thickening growth
trade associations
trimming coil
unconquerable
unfastened
unit profit sharing
uranium niobate
vacuum remelting
vinda
volume formal
wistrich
Y-Prickleback
zestrils