坏死性口炎

Tens of trillions of microbes call our living bodies home. But when we die? The first thing that happens is basically ecosystem collapsewhere you have a tremendous loss of diversity. Nathan Lents, a molecular biologist at John Jay College in New York

发表于:2018-12-02 / 阅读(111) / 评论(0) 分类 2016年Scientific American(十二)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(106) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly

发表于:2018-12-07 / 阅读(73) / 评论(0) 分类 2010年VOA慢速英语(九)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片

发表于:2018-12-12 / 阅读(135) / 评论(0) 分类 北美小学生英语一年级教材(牛津英语教材)

aspirin 阿斯匹林 dentist 牙医 earache 耳朵疼 flu 流行感冒 have a headache 头痛 have a stomachahe 胃痛 have a temperature 发烧 have a toothache 牙痛 have an earache 耳朵痛 have flu 得了流行性感冒 have measles 得了麻疹

发表于:2018-12-17 / 阅读(94) / 评论(0) 分类 新概念英语第一册单词MP3

World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r

发表于:2018-12-29 / 阅读(81) / 评论(0) 分类 英语课程学习计划和讲义

今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对,以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和

发表于:2018-12-30 / 阅读(60) / 评论(0) 分类 英语单词荟萃

发表于:2019-01-03 / 阅读(102) / 评论(0) 分类 医务英语

内分泌、营养、代谢性疾病 胫前粘液性水肿 pretibial myxedema 粘液水肿性苔藓 lichen myxedermatosis 黑棘皮病 acanthosis nigricans 黄瘤病 xanthomatosis 类脂蛋白沉积症

发表于:2019-01-03 / 阅读(95) / 评论(0) 分类 医务英语

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 医务英语

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(八)月

The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of

发表于:2019-01-13 / 阅读(120) / 评论(0) 分类 VOA标准英语2010年(一月)

The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 VOA标准英语2010年(七)月

Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h

发表于:2019-01-13 / 阅读(86) / 评论(0) 分类 VOA标准英语2010年(五)月

At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com

发表于:2019-01-13 / 阅读(116) / 评论(0) 分类 VOA标准英语2010年(三月)

This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau

发表于:2019-01-20 / 阅读(84) / 评论(0) 分类 2010年慢速英语(三)月

Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But

发表于:2019-01-28 / 阅读(107) / 评论(0) 分类 英语小达人

72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0

发表于:2019-01-30 / 阅读(124) / 评论(0) 分类 科技之光

今天我们要学的词是multitasking。 Multitasking, 原本是计算机术语,指多重任务同时处理,现在已经被沿用到日常生活中,指同时干很多事情。现在的美国中学生,一边写作业,一边听音乐,还要

发表于:2019-02-02 / 阅读(62) / 评论(0) 分类 英语单词荟萃

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(132) / 评论(0) 分类 实用英语
学英语单词
abstersing
advertent
all-breeds
antecession
appellation of origin
bally furnace
basophil(e)
basri
born days
bovets
cable liner
castle
cellarers
center crank
CI-914
conches
condenser cleaning equipment
copremia
corticomuscular
currency of bill
cymbelines
daltonides
deform
demephitize
densas
diluter
distadentis
drop lifter
drop something in someone's lap
duck-billed cats
echo canceling hybrid
ecotropism
esprixes
Eukraton
expectation set
facia
farmyard manure distributor
fire cock
fore-bemoan
galvanoplatics
Gazipur District
gem stone
girdle-sensation
Hashtgerd
high-performance circuit
homolateral
homonuclear lock signal
interchromophoric
invitation delay
JDPC
johnsonii
JRCERT
kaira (kheda)
komer
lateral closing fold
leaf primordia
look for a needle in a bundle of hay
loop errer
lumped parameter system model
major axis of flexspline
markdowns
mediafans
methylene blue absorption
Metopycide
Metylpromazlne
mooring terminal
mortgage-servicing
multiple personality disorder (mpd)
nando
non-resident investor
off-odors
one-point-three
oral tissues
pauxi
philharmonic
pillow distortion
preboring for nails
pressure programmer
price stabilization policy
production patent
pumped-storage set
quantum correction
regular dense fibrous connective tissue
reverse island skin flap
Sanak Bank
selp-contained platform
single fluid theory
sound-making
standard tractor
static electricity discharge
Stone-Cech compactification
styleable
sub-harmonic radiation
submarine tectonics
tmod
U.P.S.
uphold a verdict
valve-spring cup
vertical convection
work rule
yancovitz
zarr