氧化铅光电导管

Simon got a monthly bill that he didnt like. His Internet service provider, Wink, automatically withdrew $15 from his checking account each month. This was called direct payment. It made things simpler for him because it meant one less check to write

发表于:2018-12-06 / 阅读(117) / 评论(0) 分类 365个英语简短小故事

1. visibility /ˌvɪzəˈbɪləti/ -- degree of clearness of the atmosphere, with reference to the distance at which objects can be clearly seen With the fog rolling in and visibility approaching zero, it was virtually impossible for planes to land. 在

发表于:2018-12-18 / 阅读(119) / 评论(0) 分类 突破英文词汇

By Greg Flakus Terlingua, Texas 22 February 2006 watch Desert Dwellers report Mountains, desert near Terlingua, Texas Most human beings are social animals and yet there are people who long to get far

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 2006年VOA标准英语(二月)

By David McAlary Washington 06 December 2006 New biological evidence casts more doubt on Libyan government charges against six imprisoned Bulgarian and Palestinian medical workers accused of deliberately infecting several-hundred Libyan children wit

发表于:2019-01-09 / 阅读(186) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Paul Sisco Washington, DC 21 February 2007 watch New Discovery Center One of the newest attractions for visitors to Florida, the southernmost point in the continental United States, celebrates the undersea world in and around the famous Florida K

发表于:2019-01-12 / 阅读(156) / 评论(0) 分类 2007年VOA标准英语(二月)

By Kane Farabaugh Kangerlussuak, Greenland 24 July 2007 Greenland's glaciersshow evidence of global warming Periods of global warming and cooling have caused the terrain of Greenland to change over time -- part of the natural process of the Earth's e

发表于:2019-01-12 / 阅读(193) / 评论(0) 分类 2007年VOA标准英语(七月)

By David McAlary Washington 17 March 2006 Scientists report evidence that the universe was born in less than the blink of an eye, expanding instantly from sub-microscopic size to astronomical proporti

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 2006年VOA标准英语(三月)

The World Food Program has called on South Korea to provide $60 million in aid for North Korea. The United Nations agency says the isolated state is facing its worst food shortage in a decade. Jason Strother has more from Seoul. The South Korean Uni

发表于:2019-01-13 / 阅读(124) / 评论(0) 分类 VOA标准英语2008年(八月)

By Al Pessin Pentagon 18 June 2008 A group of American doctors that promotes human rights says it has examined 11 former detainees who were held by the U.S. military, and determined they were systematically tortured with the complicity of medical pe

发表于:2019-01-13 / 阅读(125) / 评论(0) 分类 VOA标准英语2008年(六月)

With Sri Lanka's economy stifled by 25 years of war, many here are weighing the benefits of a peace dividend, as the conflict nears an end - just in time for the global economic slump. Rebels examine their weapons in this handout picture released by

发表于:2019-01-13 / 阅读(107) / 评论(0) 分类 VOA标准英语2009年(二月)

Acupuncture by Untrained Providers Poses Risks for Kids In the hands of trained practitioners, acupuncture is a safe medical treatment, even for children. But a new study finds when acupuncture is performed by untrained providers, it can pose a serio

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 VOA标准英语2011年(十一月)

Prosperity in Turkey Creates Iftar Divide In Turkey, the Islamic fasting month of Ramadan has put the spotlight on the increasing divide between rich and poor. The country's growing affluent class, a product of a decade of unprecedented economic grow

发表于:2019-01-14 / 阅读(130) / 评论(0) 分类 VOA标准英语2011年(八月)

SCIENCE IN THE NEWS - November 12, 2002: Oldest Evidence of Jesus? / Mapping Genes that Cause Disease / 2002 World Health Report VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with

发表于:2019-01-30 / 阅读(153) / 评论(0) 分类 科技之光

By Jade Heilmann Dakar 19 December 2007 Africa is slowly bridging the gap that divides it from the digital world. Government officials and technology companies are trying to implement programs such as telemedicine and electronic education within the

发表于:2019-01-31 / 阅读(105) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Nazzy Belgari and Saman Arbabi Arabian Sea 18 May 2007 USS Nimitz The aircraft carrier USS Nimitz recently arrived in the Arabian Sea to support coalition forces fighting in Iraq and Afghanistan. As one of two U.S. carriers in the region, it is a

发表于:2019-01-31 / 阅读(143) / 评论(0) 分类 2007年VOA标准英语(五月)

By Kurt Achin Seoul 14 October 2006 U.N. Security Council (file photo) The United States has told its Asian allies that traces of radiation have been detected that may confirm North Korea's announcement of a nuclear test. Word of the still inconclus

发表于:2019-02-03 / 阅读(162) / 评论(0) 分类 2006年VOA标准英语(十月)

By Phillip Wellman Dakar 16 September 2007 Efforts to reunite war-divided Ivory Coast have been fraught with difficulty, but some say the Ivorian band Magic System has been able to bring people together in a way politicians have not. The band is mark

发表于:2019-02-04 / 阅读(153) / 评论(0) 分类 2007年VOA标准英语(九月)

By Greg Flakus Houston 12 March 2008 Senator Barack Obama added another victory to his campaign for the Democratic nomination Tuesday, winning the southern state of Mississippi's primary. The 33 delegates at stake will be divided with opponent Senato

发表于:2019-02-05 / 阅读(95) / 评论(0) 分类 VOA标准英语2008年(三月)

Analysts and U.S. officials say American pressure on Pakistan over counterterrorism policy has strained the relationship between that country's government and its military. As VOA Correspondent Gary Thomas reports, the two camps differ over how much

发表于:2019-02-08 / 阅读(99) / 评论(0) 分类 VOA标准英语2008年(十月)

电脑英语--常见硬件篇CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,只

发表于:2019-02-15 / 阅读(149) / 评论(0) 分类 天天商务口语
学英语单词
a minimum speed airfoil
aquatex
area filling
armstand dive
assist someone with something
at capacity
atria posterius
bearing loss
belt ammunition
block captains
blomquist
bloodlike
bogomil
boola-boola
calcite trachyte
Carlingford
ciliary dysentery
compound(multiple)still
consensus tree
contumely
crafters
creditaccount
dadohead machine
dekatrons
delta pyriforme
diffuser wall
directional gyro
disoblegiant
elasticity number
encoded keyboard
ethnohistory
fermentation vat
flunirazepam
fully-extended
galactic barycenter
genus tetrahymenas
geogram
gig-lamps
goodison
heavy dough
horseradish tree
hot stuff man
hydrostatic drives
in s keeping
incremental hysteresis loop
initiating laser
integral armband
Ixcapuzalco
joint plant
jutesoftener
ling
loading charge
lossy network
macrophyllas
me-tooer
mean stream length
megacephalies
mmols
monetary equivalent
monetary neutrality
multilayer spiral structure
obstinate desertion
off-machine coating
Ogoamas, Gunung
out-of-universe
paleoecology
pembangunan
pharyngomaxillary
photoconductive ceramics
photoelectric threshold
piston ring groove cleaner
plane meter
popular quality
pseudotympanites
psychovisual
reservoir depleting curve
ring-a-rosies
rotating-rotor air preheater
rotation of a rigid body about a fixed axis
salivary calculus
saturable absorption Q-switching
sedimentation time
separated rail fastening
seven-ribbed
signalperson
slop culture
social chauvinism
sovereign rating
standard compass
sym-dimethylsuccinic acid
talliths
tantalization
tari
the Audit Bureau of Circulations
thinned down
tirshatha
tricuspid vertebrae
trim loss
unpoliticness
volcano-geothermal region
wagonmasters
zamia floridana dc.