不对称二苯脲

Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,

发表于:2018-12-24 / 阅读(88) / 评论(0) 分类 Scientific American(十)月

By Al Pessin Pentagon 24 March 2008 When a roadside bomb killed four American soldiers in Baghdad Sunday night it brought the U.S. military death toll in Iraq to 4,000. It was a symbolic moment, particularly coming during a period of reduced violence

发表于:2019-01-12 / 阅读(90) / 评论(0) 分类 VOA标准英语2008年(三月)

Some Zimbabwe government supporters say President Robert Mugabe should form a government without the opposition, following an opposition boycott of talks Monday in Swaziland. Tendai Maphosa asked ordinary Zimbabweans in Harare what they think about

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2008年(十月)

Science and technology 科学技术 Reptilian micturition 爬行动物的排尿 That's a relief 可算是方便了 Softshell turtles urinate through their mouths 鳖类通过其嘴部小便 WHY did the turtle stick its head in a bucket? 为什么乌龟

发表于:2019-02-03 / 阅读(141) / 评论(0) 分类 经济学人科技系列

A bureaucrat was hiking when he came upon a shepherd tending a large flock. The bureaucrat took a fancy to the sheep and asked the shepherd, If I can guess how many there are, may I have one? The shepherd thought it unlikely the man would guess the e

发表于:2019-02-07 / 阅读(100) / 评论(0) 分类 趣味英语

今天我们要学的词是bureaucracy。 Bureaucracy, 官僚。美国国防部长盖茨上周末公开对军方庞大的官僚体制提出批评。 Gates took aim at what he called a bloated bureaucracy, 他还保证要亲自过问,精简军方的官

发表于:2019-02-08 / 阅读(79) / 评论(0) 分类 英语单词荟萃

Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转

发表于:2019-02-08 / 阅读(119) / 评论(0) 分类 英语新闻

Conflict resolution marked the career of former Finnish president Martti Ahtisaari who has received this year's Nobel Peace Prize for his efforts to secure peace in various regions of the world. In this report from Washington, Senior Correspondent A

发表于:2019-02-12 / 阅读(91) / 评论(0) 分类 VOA标准英语2008年(十月)
学英语单词
accuracy and performance control document
aleron
almeyda
anisomorphism
astroglide
barella
bearing charge
black sapote
Bol'shaya Kamenka
Bonnanaro
brain-gut axis
Brownings
bruise trimmer
bubble-heads
bursae musculi bicipitis femoris superior
capped nonionics
Changhsian Age
Chomsky, Noam
come-on line
continental escarpment
Costa de la Luz
cupset
current-on contact
cyclising
DABER
Davids
deep space laser communication system
depressing Qi
desoxalic acid
dichlordioxydiamidoarsenobenzol
double discounting
electrical protective obstacle
electrohydraulic pulse motor
electron beam machining tool
ethyl oenanthate
exorista hyalipennis
farag
feed yarn
fenbuconazole
foreign exchange quota
franglibility
functioning capability
Garhi
gas station attendant
Gaussian source
heat pipe application
heavy strand
heliogravures
hold joint court trial
Home Modification
house wines
hydrosulfites
informal adoptiopn
intragroup cross-section
isofosfamide
jevan
Laruitsen
Leave Quarantine
life-changing
limiting wage increases
lock-hospital
Loongson
majorizing subset
maternities
micrococcus ovalis
millons
muggy monsoon
multisatillite colocation
Nepaleses
non-circulating lubrication
note form
Nup475
oenometers
old-agest
oxflies
oxo catalyst
palm-oil
parameter drift
peep door
phytogenetical
Plasbumin-25
pneumatic balancer
praecoracoid
preexponential factor
ribonucleic acid synthetase
rock wast
single-shot instrument
sulfids
sulfur cockatoo
suspected carrier
synchronous revolution
synoviparous crypts
technology of inorganic chemicals
timomenus shelfordi
trailing zero
Trichnellidae
ultracentrifugal characterisation
unmediatable
uterus atresia
visible spectrometer
water sealing cap
weepeth