水流阻力

World Action Needed to Prevent Widespread Antibiotic Resistance Since the discovery of penicillin in 1928, we have used antibiotics against a host of infections. But now, doctors are finding that more and more bacteria are resistant to even the stron

发表于:2018-12-08 / 阅读(166) / 评论(0) 分类 VOA标准英语2015年(十二月)

Technology Report - How to Make Your Own Solar Water Heater This is the VOA Special English Technology Report. Solar water heaters are used around the world and are not very difficult to build. The system we are going to describe is based on a design

发表于:2018-12-16 / 阅读(157) / 评论(0) 分类 2011年VOA慢速英语(四)月

Unit 108:Get into the swim 第108单元:游泳去 One of the best all-around exercises,swimming increases both cardiovascular and muscle strength. 游泳能促进心血管及肌肉的耐力,是最佳的全身运动之一。 There is hardly any

发表于:2018-12-26 / 阅读(122) / 评论(0) 分类 减肥瘦身英语口语话题

Rome's savagery was matched by its size. When the Colosseum was built, Rome was a city of a million people and growing. Not until London of the 19th century would a city approach this size again. What

发表于:2018-12-31 / 阅读(204) / 评论(0) 分类 罗马的崛起

DEVELOPMENT REPORT – How to Make a Solar Water Heater By Gary Garriott Broadcast: Monday, November 29, 2004 I'm Gwen Outen with the VOA Special English Development Report. Solar water heaters save o

发表于:2019-01-02 / 阅读(262) / 评论(0) 分类 农业与发展

The spokesman for the Lord's Resistance Army says Congolese forces and U.N. peacekeepers in Congo Kinshasa are preparing to move against the rebel group, which has yet to sign a peace deal to end a 20-year reign-of-terror in the region. VOA Correspo

发表于:2019-01-06 / 阅读(220) / 评论(0) 分类 VOA标准英语2008年(九月)

This is Scientific American's 60 seconds science. I'm Kellen Horgon. This will just take a minute. Have you ever wondered what happens to mosquitos in the rain, a raindrop is like 15 times heavier than those little suckers. So getting hit by one, he'

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(六)月

AGRICULTURE REPORT – October 29, 2002: Pest Management By Gary Garriott This is the VOA Special English Agriculture Report. Since nineteen-forty-five, farmers have used pesticides, poisons made from

发表于:2019-01-11 / 阅读(157) / 评论(0) 分类 农业与发展

This is the VOA Special English Development Report. Solar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. An example of a rooftop solar water heater being built in South Africa The

发表于:2019-01-11 / 阅读(183) / 评论(0) 分类 VOA慢速英语2009年(四)月

Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi

发表于:2019-01-13 / 阅读(155) / 评论(0) 分类 VOA标准英语2012年(一月)

Vidushi Sinha | Washington, DC 18 May 2010 The World Health Organization calls antibiotic resistance one of the three greatest threats to human health. Experts fear antibiotic resistance puts humans in danger of becoming nearly defenseless against so

发表于:2019-01-13 / 阅读(196) / 评论(0) 分类 VOA标准英语2010年(五)月

Kenya: Misuse of Antibiotics Leading to Resistance by Immune System NAIROBI In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities a

发表于:2019-01-14 / 阅读(178) / 评论(0) 分类 VOA标准英语2015年(一月)

As Assault On Mosul Looms, Resistance Grows And ISIS Grows More Brutal play pause stop mute unmute max volume 00:0003:43repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

发表于:2019-01-17 / 阅读(167) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-01-19 / 阅读(224) / 评论(0) 分类 2015CRI中国国际广播电台

The water can flow or creep or drip or crash.Be water, my friend. 水可以流淌 潜行 滴落 冲击,像水一样吧 朋友。 Bruce Lee's philosophy has spotted an unususal following across European cities.This is free running. 李小龙的哲学在

发表于:2019-01-23 / 阅读(140) / 评论(0) 分类 名人传记

49 深海水流正逐渐减少 DATE=7-25-01 TITLE=SCIENCE REPORT - Reduction in Deep Sea Current BYLINE=Caty Weaver (Start at 59

发表于:2019-01-30 / 阅读(247) / 评论(0) 分类 自然探索

爱的反抗力 Muse - Resistance Resistance Muse Is your secret safe tonight? And are we out of sight? Or will our world come tumbling down? Will they find our hiding place? Is this our last embrace? Or will the walls start caving in? (It could be w

发表于:2019-02-05 / 阅读(150) / 评论(0) 分类 好听的英文歌曲

美国英语口语俚语(4) 1.ripoff 骗人的东西 What a ripoff! The new car I bought doesn't work! 真是个骗人货!我买的新车启动不了! 2.rock the boat 找麻烦 Don't rock the boat! Things are fine just the way they are. 别找麻烦

发表于:2019-02-06 / 阅读(140) / 评论(0) 分类 实用英语

Listen to the questions and check the best answers. 1.May I see the wine list? 2.Could you give us one more beverage menu? 3.Do you offer cold water? 4.Is the soft drink free flow? 5.Do you have any beverage for children? 英语听力练习题 Listen

发表于:2019-02-17 / 阅读(151) / 评论(0) 分类 英语听力练习题

Mekong River nations are suffering from the most severe drought in decades, affecting tens of millions of people. In response, China has discharged water to help relieve the crisis. China began offering the emergency water supply since Tuesday, and w

发表于:2019-03-12 / 阅读(221) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
abelian groups
acute enteritis
advance refunding
amanita toxin
analysis for financial management
Ballyhoman Bay
Bardenheuer
Battley's sedative
benzylic intermediate
Bepagut, Gunung
black market transaction in foreign exchanges
bordroom-man
by-pass diode
canister respirator
cheiloceratids
clankless
cohesive failure
collectedly
Colona floribunda
could see
cringeing
current-limiting thermostat
dairy-type
Dale phenomenon
dewiring
dirt farms
electrical predictor
federal fund market
fiduciary responsibility
first-order modal logic
flying spot film reader
folious
form energy
Formania mekongensis
gently-born
get one's step
glass wool blanket
glonoine
gonbad-e kavus
group matrix
Gweta
heating section
Hebridians
Heister's diverticula
ice contact delta
ice control structure
Ilex lihuaensis
in a nutshell
infinite superpopulation
kadan
konimeter(conimeter)
landing joint ownership
law of constant heat summation
law of energy
Lenape
lienarts
locked rotor control power
maintenue
make high demands on sb
manual-reset relay
merry-meeting
metallic currency
misner
monosignificant
multi-product analysis
multilateral contract
near term work-load
negative tropism
Nodi lymphatici pericardiales laterales
organofluorine
peeweep
Phleum phleoides
planchery
polycarbonate dye
potassium aminochromate
potluck
projective method
purple scale
pyrophoric property
regulation school
righteouser
salicylic acid propyl ester
Sarzan
sausage parties
Sellersburg
sending a message
sinusitis frontalis
slow start
spanish armadas
Store Koldewey
symmetry direction
system of decentralization
table-type and continuous sander
thedeus
thimble-shaped
tomakivka (tomakovka)
Tongoloa
translational asymmetric ripple
trypethelium tropicum
undockings
zelio paste
zhimusaponin