传染唾沫

Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

发表于:2018-11-29 / 阅读(136) / 评论(0) 分类 VOA标准英语2015年(十二月)

[00:00.00]Unit 25 [00:05.80]Reading and speaking [00:08.24]A changing city [00:10.53] For centuries,Beijing has been one of China's [00:13.47]most important cities. [00:15.69]Originally a place for emperors and officials, [00:18.14]today it is a weal

发表于:2018-12-13 / 阅读(174) / 评论(0) 分类 北师大版高中英语模块9(选修)

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? We all know to wash our hands after handling raw poultry. But next time youve just cruised down the interstate behind a truck full of chickens or Thanksgiving turkey

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 Scientific American(十一)月

Sneeze and cough particles form a cloud whose turbulence pulls in surrounding air, which allows the goop to maintain buoyancy and move farther than expected. Cynthia Graber reports. Gordon: When you have to sneeze or cough, do it into the bend of you

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 英伦广角

DEVELOPMENT REPORT -February 18, 2002: Infectious Diseases By Jill Moss This is the VOA Special English Development Report. The World Health Organization and several other United Nations agencies are

发表于:2019-01-07 / 阅读(77) / 评论(0) 分类 农业与发展

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? A direct effect on human health related to climate change is the likely increase in infectious diseases transmitted by insects or through contaminated water. In the Marc

发表于:2019-01-08 / 阅读(88) / 评论(0) 分类 Scientific American(四)月

Cavers Explore Mysterious Hidden Wonders Caves have a subconscious hold on our imaginations - for our ancestors, they were not just shelter from the elements but also symbols of the womb, gateways to the underworld, places of wonder and mystery. Not

发表于:2019-01-09 / 阅读(79) / 评论(0) 分类 VOA标准英语2011年(八月)

This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav

发表于:2019-01-11 / 阅读(76) / 评论(0) 分类 VOA慢速英语2007年(十)月

By Lisa Schlein Geneva 23 August 2007 The World Health Organization warns new and emerging infectious diseases are spreading rapidly around the world threatening the health, economies and security of all nations. This year's World Health Report says

发表于:2019-01-13 / 阅读(133) / 评论(0) 分类 2007年VOA标准英语(八月)

Dallas Attacks West Nile Virus by Land, Air The aerial and ground fumigation programs are blanketing around 1,400 square kilometers of the county, but don't target all mosquitoes. Laura McGowan, who works with Clarke, the company contracted to carry

发表于:2019-01-13 / 阅读(74) / 评论(0) 分类 VOA标准英语2012年(八月)

Ben Carter Powdered material called dry water, could provide a new way to store carbon dioxide in an effort to fight global warming. Dry water looks a lot like fine white sand, which isn't surprising since what makes it dry is that each tiny water dr

发表于:2019-01-14 / 阅读(107) / 评论(0) 分类 VOA标准英语2010年(九)月

Tools to Fight Infectious Diseases Rely on Public Health Programs A simple bite from a mosquito can end someone's life or change it forever. A sneeze, a handshake or even sharing of a desk can do the same thing. That's how H1N1 - or swine flu - sprea

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2012年(十二月)

Fact: liquid water is heavier than air. Fact: clouds, which consist of water droplets and ice crystals, seem to hover in the air. One final fact: the water droplets in a typical cloud together weigh many tons. Which raises a question: how do clouds s

发表于:2019-01-22 / 阅读(173) / 评论(0) 分类 英语时差8,16

BEIJING, Aug. 7 (Xinhua) -- Infectious diseases claimed 1,669 lives on the Chinese mainland in July, with AIDS contributing to 70 percent of the deaths, the Ministry of Health (MOH) said Tuesday. A total of 5,552 AIDS cases, which is categorized as a

发表于:2019-02-05 / 阅读(87) / 评论(0) 分类 英语新闻

A recent study found almost 60 percent of surgical residents admitted they had sustained needlestick injuries when they were medical students. Blunt tip needles, such as this one, are considered safer A recent study shows that medical students and ho

发表于:2019-02-05 / 阅读(97) / 评论(0) 分类 VOA标准英语2010年(二月)

一次咳嗽会产生2万个病毒 The next time you cough or sneeze, there is good reason to cover your mouth. As many as 20,000 viruses are expelled in an average cough, which may be sufficient to infect many people - particularly those who are not

发表于:2019-02-05 / 阅读(97) / 评论(0) 分类 实用英语

Metal, heal thyself 金属,自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学:研究人员构想出了一种新颖独特的方法,

发表于:2019-02-17 / 阅读(95) / 评论(0) 分类 经济学人综合

What's more, I've detected those falling and rising currents that make up the ocean's true breathing. 此外,我又注意过那些由上而下和由下而上的水流,形成真正的海洋呼吸作用。 I've seen a molecule of salt water heat up

发表于:2019-02-25 / 阅读(69) / 评论(0) 分类 《海底两万里》中英双语有声读物

They absorb the marine salts, they assimilate the solid elements in the water, 它们吸收了海中的盐,消化了水中的固体物质, and since they create coral and madrepores, they're the true builders of limestone continents! 它们是真正

发表于:2019-02-25 / 阅读(71) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
abrodictyum cumingii pr.
aestheometry
ann(unciator) acknowledge
articular surface of head of rib
atomization of liquid metal
balanced electrolyte solution
be versant in sth
biliprealbumin
Bol'shaya Minya
bowden cable
brottons
Bum-Bum, Pulau
BW57322
central convulsion
cernes
chenotaurocholic acid
choker transformer
cnyn
cold-drawn bar
complementary afterimage
constant surface deflection
cryogenic viscosimeter
deairing tower
department of traumatology
deprivatized
devorative
diagenetic trap
dispersion nuclear fuel
durity
Elbow Cay
eligible products
English galingale
epistolaries
fack
federal deposit insurance corporation (fdic)
FK5
garage doors
gematrically
geomagnetic storm
glybenzcyclamide
high speed gear hobber
holocrystalline-porphyritic
HzRG
infra-occlusion
intercolumnal
interhyal (or stylohyal)
inviolability of consular premises
kobrin
Lake Eliza
lyophilic radical
mackaw
malleabization
masked hunters
mcrib
meynert's cell
microworms
minute plaque mutant
miss the mark
naphtyl naphthalene
needle grass
negative replica
neomyrtillin
neutron
Newton's view of time and space
niebauer
norcocaine
nutrient pollutant
onlyborn
optical homing
orangists
ourishness
oxialf
parcellating
petabecquerel
pferdstaerke (ps)
Physospermopsis alepidioides
plain face
positive clamping
pourpensed
pyrolusitum
raphel
retroflectors
Rincón Grande
Rydöbruk
sasrsasbs-s
ship lowering plant
Song-dong
souray
spitoon
stasipatric
succeed to the throne
surveying terms
thousandths-place
trichiferous
trithemius
unkings
unodc
Urziceni
vertebral process
with a rope round one's neck
Workplace Shell
zinc dibutyl dithiocarbamate