噬铁杆菌类;铁细菌科

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(574) / 评论(0) 分类 新概念优美背诵短文50篇

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

发表于:2018-12-01 / 阅读(264) / 评论(0) 分类 新东方背诵文选

A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r

发表于:2018-12-07 / 阅读(249) / 评论(0) 分类 创新英语

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Sometimes a bit of bacteria can be just what the doctor ordered. If you prize yogurt for its active cultures, you know what Im talking about. Now a new s

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(九)月

They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists at the University of Colorado in Boulder have been able to identify individuals ba

发表于:2018-12-24 / 阅读(170) / 评论(0) 分类 Scientific American(三)月

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(171) / 评论(0) 分类 VOA常速英语2008年(二月)

You know how uncomfortable it feels when you really have to go to the bathroom? And you have to hold it in? If researchers get their way, disease-carrying mosquitoes will spend their last moments being that uncomfortable. Cornell University scientist

发表于:2019-01-08 / 阅读(197) / 评论(0) 分类 Scientific American(三)月

I believe in honor, faith and service I believe that a little outrage can take you a long. . . . I believe in freedom of speech I believe in empathy I believe in truth Renee Montagne: On Mondays, we bring you our series, This I Believe. Short statem

发表于:2019-01-08 / 阅读(234) / 评论(0) 分类 2005年NPR美国国家公共电台

By Andre de Nesnera Washington 06 July 2006 Just a few days ago, North Korea triggered an international furor when it conducted several ballistic missile tests. In this report from Washington, VOA Senior Correspondent Andr de Nesnera looks at whethe

发表于:2019-01-11 / 阅读(244) / 评论(0) 分类 2006年VOA标准英语(七月)

HealthReport-GutBacteria:WeAreWhatWeEat This is the VOA Special English Health Report. The human digestive system is full of bacteria -- mostly good bacteria. These organisms help break down food so the body can use the nutrients. Scientists are expl

发表于:2019-01-12 / 阅读(204) / 评论(0) 分类 2011年VOA慢速英语(九)月

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

发表于:2019-01-12 / 阅读(295) / 评论(0) 分类 2015年VOA慢速英语(七)月

Bacteria Thrive on Ocean Plastic Debris It takes about six weeks for a plastic bag or bottle to ride the surface currents from the U.S. East Coast to the Sargasso Sea, in the center of the North Atlantic. The area is a gyre, essentially a big whirlpo

发表于:2019-01-14 / 阅读(148) / 评论(0) 分类 VOA标准英语2013年(七月)

音乐咖啡厅:Beckah Shae - Just to Know 相关介绍 :而这是Beckah Shae的一张最新专辑,经Montell Jordan, tobyMac Group 1 Crew 等人编制,由Shae Shoc Records音乐公司出品。 也就是说,这张专辑是由Beckah Shae自己的

发表于:2019-01-17 / 阅读(263) / 评论(0) 分类 音乐咖啡厅

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster we have part two of our look at proverbs in American English. RS: We continue our conversation with Wolfgang Mieder, a professor of German and folklore at the University of Vermont

发表于:2019-01-18 / 阅读(181) / 评论(0) 分类 英语单词大师-Word Master

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: proverbs in American English. RS: It's tempting to call Wolfang Mieder the proverbial expert from out-of-town. A professor of German and folklore at the University of Vermont, he

发表于:2019-01-18 / 阅读(199) / 评论(0) 分类 英语单词大师-Word Master

European and World Health Organization scientists say a deadly outbreak of E. coli bacteria that has killed 18 people is a rare and virulent(致命的) strain of the bacteria. The latest victim died Wednesday night in Germany. The United Nations agen

发表于:2019-02-04 / 阅读(157) / 评论(0) 分类 英语新闻

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Ac

发表于:2019-02-07 / 阅读(148) / 评论(0) 分类 英语新闻

BERLIN, May 2 (Xinhua) -- Finnish(芬兰) soccer veteran defender Sami Hyypiae is going to quit his active career after the season 2010/2011 at his current club Leverkusen, aiming to start a professional coach schooling, Hyypiae announced on Monday.

发表于:2019-02-08 / 阅读(147) / 评论(0) 分类 英语新闻

音乐咖啡厅:Beckah Shae - Life 相关介绍:Beckah Shae很小的时候就显示出她在音乐方面的特殊天赋,常常被人们称赞为songbird。作为一名独立厂牌的音乐歌手, Beckah Shae一直都很坚持自己的音乐风格。

发表于:2019-02-18 / 阅读(253) / 评论(0) 分类 音乐咖啡厅

Chelsea beat FC Nordsjaelland 4-0 in Champions League COPENHAGEN, Oct. 2 (Xinhua) -- Top English football club Chelsea beat Danish side FC Nordsjaelland 4-0 to win their first Champions League group stage match at the Parken Stadium here on Tuesday e

发表于:2019-02-19 / 阅读(196) / 评论(0) 分类 英语新闻
学英语单词
adjustment problems
aerodynamic investigation
aescigenin
affine length of arc
amor vincit omnia
antiracists
Archeaocidaridae
ariza
b-typest
beat into one's head
bedded stratified
blente
carboximidoyls
chloroacetic anhydride
cockcroft-walton rectifier
conference papers
control simulation
creative design system
crown rent
deoxycholic aicd
destabilizing force
Dispas
dispatch reports promptly
early delivery
Erbai (Ex10)
exporting services
extended cost
ezrati
fingerprint
fissure for ligamentum teres hepatis
forward selling
fossil flax
genghis khans
glycinal
grease interceptor (trap)
Hambergfjellet
heat-setting
heminephroureterectomy
hrotsvitha
hydrazinoethanol
hypoglycemic effect
i section
indented roller
information archipelago
internal delustring
James Mason
job control procedure
judgematic
Kosciusko
language proficiency examination
laurolene
levy upon
lissomenesses
mature ocean
medial part
methyl diiodosalicylate
negative sequence symmetrical component
off-balance sheet financing
ohe
oxyfedrine hydrochloride
parametric frequency tuning
pelopium
periodical cicada
pignatellis
postcard ad
precandidacy
psacadium bilimbatum
rapid automatic press
rived
rotary tube expanding machine
rotational audit plan
Russell's angle
saturated infiltration runoff
save ... bail
Schwanstetten
scoare
sealing surface area
selective firing
selfcompensating
semi-professionals
sevcon
slip blade
smoker's
soil-balls
spray pond
surplus-values
taboparesis
tape-loops
terminal side
three-dimensional Pitot probe
tidal signal station
to institute proceedings
tonification
transfer pump spring
trepan-formed perforator
triethyltin ethoxide
undefied
vault cash reserve
visual impression
wet-out
whistle sign
xiphocheilus uadrimaculatus