脱氧土霉素

【1+1英文】 Angela:

发表于:2018-11-27 / 阅读(298) / 评论(0) 分类 英语口语1+1

By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria

发表于:2018-12-16 / 阅读(143) / 评论(0) 分类 2007年VOA标准英语(二月)

STEVE INSKEEP, HOST: This year Americans will spend more than $2 billion on probiotics, supplements aimed at boosting what are called good bacteria inside us. One part of the market that's growing rapidly is probiotics for babies and kids. Here's NPR

发表于:2018-12-17 / 阅读(118) / 评论(0) 分类 2018年NPR美国国家公共电台5月

John Keats (1795 - 1821) My heart aches, and a drowsy numbness pains My sense, as though of hemlock I had drunk, Or emptied some dull opiate to the drains One minute past, and Lethe-wards had sunk: Tis not through envy of thy happy lot, But being to

发表于:2019-01-02 / 阅读(179) / 评论(0) 分类 英语诗歌

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(190) / 评论(0) 分类 60秒科学

The Pot Calling the Kettle Black I have spent a lot of time and effort,stated King Hui of the state of Liang,on governing my country.When there is a bad harvest in Henei,north of the Yellow River,I evacuate the people there to Hedong,east

发表于:2019-01-06 / 阅读(174) / 评论(0) 分类 趣味英语

DEVELOPMENT REPORT – March 18, 2002: Pot-in-Pot Cooling Device By Jill Moss This is the VOA Special English Development Report. In many developing countries, it is difficult to keep food cool. Most

发表于:2019-01-06 / 阅读(219) / 评论(0) 分类 农业与发展

Sweeten the pot The cards are stacked against you 美国人最普遍的纸牌游戏就是扑克,扑克牌游戏就像牛仔裤一样具有美国特色。那末,扑克牌游戏是怎么玩的呢?很简

发表于:2019-01-06 / 阅读(212) / 评论(0) 分类 美国习惯用语

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 Scientific American(五)月

[ti:UNIT 7 Know Our World Coming! Lesson 49: Let's Learn Geography!] [0:00.291]UNIT 7 [0:02.469]Lessons 49~56 Lessons 49~56 [0:05.445]Know Our World [0:07.187]You Will Learn 你会学到 [0:08.930]Functions 功能 [0:10.018]Talking About Numbers 谈论

发表于:2019-01-09 / 阅读(334) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

By Jim Malone Washington 02 January 2007 State Funeral service at the Washington National Cathedral for former President Gerald R. Ford, 2 Jan. 2007 Official Washington bid farewell to former President Gerald Ford on Tuesday. Mr. Ford, the 38th pres

发表于:2019-01-13 / 阅读(224) / 评论(0) 分类 2007年VOA标准英语(一月)

Russian President Dmitri Medvedev has signed decrees granting formal recognition to the Georgian breakaway regions of Abkhazia and South Ossetia. But VOA Moscow correspondent Peter Fedynsky reports analysts say the move could promote separatism in R

发表于:2019-01-13 / 阅读(132) / 评论(0) 分类 VOA标准英语2008年(八月)

The United Nations is appealing for more than $58.5 million to provide emergency assistance to tens of thousands of people affected by the crisis in Georgia over the next six months. Aid agencies report their biggest problem remains one of access. L

发表于:2019-01-13 / 阅读(157) / 评论(0) 分类 VOA标准英语2008年(八月)

Geophysicist Probes Ocean's Secrets Today, Pitman is a distinguished professor of geophysics at Columbia University, and the recipient of many of his fields most coveted honors. Even though he is now in his 80s, Pitmans animated manner makes it easy

发表于:2019-01-13 / 阅读(350) / 评论(0) 分类 VOA标准英语2012年(一月)

KELLY MCEVERS, HOST: We're going to hear about something called geofencing. You might know about it. But if you don't, it's wireless technology that tracks mobile devices entering and exiting a specific area. Up to this point, it's mostly been used b

发表于:2019-01-16 / 阅读(199) / 评论(0) 分类 2017年NPR美国国家公共电台7月

ROBERT SIEGEL, HOST: Now some good news, especially for babies around the world. Scientists in the U.S. and India have found an inexpensive treatment for a common infection. It could save hundreds of thousands of newborns each year. The treatment com

发表于:2019-01-16 / 阅读(163) / 评论(0) 分类 2017年NPR美国国家公共电台8月

RACHEL MARTIN, HOST: Go online, walk through any health store or supermarket, and you'll find all kinds of products being sold as probiotics. They're being promoted for all kinds of things - preventing upset stomachs, boosting the immune system, figh

发表于:2019-01-16 / 阅读(132) / 评论(0) 分类 2017年NPR美国国家公共电台12月

Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be

发表于:2019-02-04 / 阅读(132) / 评论(0) 分类 阅读空间

U.S. President George Bush says Russia must not lay claim to the breakaway Georgian republics of South Ossetia and Abkhazia. VOA White House Correspondent Scott Stearns reports, Mr. Bush says all Russia forces must leave Georgia. Russia says there i

发表于:2019-02-06 / 阅读(148) / 评论(0) 分类 VOA标准英语2008年(八月)

今天我们要讲的习惯用语的关键词是pot。我想大家都熟悉pot这个词。它可以解释煮东西的锅子。我们要学的第一个习惯用语是: go to pot。 Go to pot这个习惯用语来自牧场。牧场上的牲口随着年龄

发表于:2019-02-18 / 阅读(201) / 评论(0) 分类 美国习惯用语
学英语单词
acoustical test
animo et fide
anisolesulfonphthalein
asperrimus
assembly holding block
bakistres
Ban Nong Yat
be bound apprentice to sb
bevel etch
bleached out
bluntness effect
book award
bridge convertor connection
celibates
center feed tape
Chimidikyan
Cimaadle
coalises
concurrent leaching
culex (culex) pseudovishnui
deprescription
Desmocontae
dichlorphenamide
dischevel
echosonogram
ethyl diphenyl phosphine
facies articularis fibularis (tibi?)
fast page-mode RAM
FIDO torpedo
financial allocation
form of treaty form
genus pericalliss
geomagnetic index
half-channel scram
homogeneous sublimation
hydraulic jig
in w
increase percent protein
industrial effluents
insectophobia
internal-compression air inlet
isometric parallel
jet ignition
k-bar
Kilglass L.
krook
lady's-finger
limited fee
linear continuity
liquor potassii arsenitis
Matsucoccus
meatgrinder
method of palpation
monitoring turbidimeter
musical comedy
NAP-1
nerdsome
niranium
nomber
not-uncommon
oceanic anticyclone
Ontarians
orogenic folding
Pahsimeroi River
pension-ages
plastic surgeries
plumeria lutea ruiz et pav.
precalced
ptel
pull that off
pulse-combustion
put and call options
quenelles
rail end batter
re-embosom
reentrant syncline
resistor array
resonated impedance bond
resource of dust
right injective resolution
romage
RVBODY
Sackfish
Schefflera kwangsiensis
smokehouses
snugglier
sodium alkylarylsulfonate
spearwoman
sub-stellar point
sympetal
take-care cabinet
Tandaué
tapestry red
teacher right
tension stud set screw
the Pennsylvania Dutch
vitreous texture
voltage root mean square
warm-blooded
weathered pointing
wet bottom boiler
zero multipliers