巴胺磺丁脲,对巴豆酰胺苯磺酰丁脲

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

发表于:2019-01-08 / 阅读(66) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Education Report. We continue our Foreign Student Series this week with two questions that we received. Anatolii Artamonov, a university student in Ukraine, would like to know about student exchange programs in the Un

发表于:2019-01-11 / 阅读(41) / 评论(0) 分类 VOA慢速英语2007年(五)月

今天我们要学的词是heat。 大家都知道heat是高温的意思,那么不难想象,引伸一下,heat也可以理解为压力。还有两个多星期,美国2008年总统大选的初选就要拉开帷幕了。 Democratic leading candid

发表于:2019-01-20 / 阅读(52) / 评论(0) 分类 英语每日一词

EDUCATION REPORT - Foreign Student Series #6: Student and Exchange Visitor Information System (SEVIS) By Nancy Steinbach Broadcast: Thursday, October 07, 2004 This is Gwen Outen with the VOA Special E

发表于:2019-01-30 / 阅读(62) / 评论(0) 分类 教育与新闻

EDUCATION REPORT - Exchange Is a Cost-Saving Way to Spend a Year at a U.S. College By Nancy Steinbach Broadcast: Thursday, August 11, 2005 I'm Barbara Klein with the VOA Special English Education Repo

发表于:2019-01-30 / 阅读(68) / 评论(0) 分类 教育与新闻

狗狗为何光脚不怕冷 日本一位科学家研究发现,狗之所以能够光脚在雪地上行走自如,而不觉得冷,奥秘之处在于其脚掌上有个内部中央供暖系统,它能让温暖血液流到特定部位,以避免冰冷

发表于:2019-02-01 / 阅读(36) / 评论(0) 分类 实用英语
学英语单词
aphlastic
association for policy analysis and management
authentication authorization accounting
bellidoite
bluish white porcelain
boss tool
Bow Street Runners
breakdown process
bunchberry dogwood
cab-behind-engine truck
clingfish
cluck
coal transfer house
colonialisms
colter boot
congenital stenosis of pulmonary valve
connect-out command
countercorrelations
cuddled up
delphinion
developing outfit
dirtbags
dunsail
Elaspar
exocentrus nanshanensis
flood channel
flysch type
for all intents and purposes
foredamn
full of years
fundamental chain
game-plan
ganiometer
gas dosing
gas turbine charging
giga-ohms
go out of the way to
group effects
hull number
human thought
humax
Hypotremata
isopotential surface
jabbering
junior schools
Kaung
kinematograph
landscape architect
lashing out
lathe treadle
launcelot
loading/unloading volume
logging correction
machilus japonica kusanoi
Method of Chain of Causes
minnesingers
moor alongside
multifrequency code signaling
Ninōji-dake
nonpolicy
order of merge
organizational form
Parry Pen.
part operation
passacaglias
performance history
plain caliper gauge
platydema sauteri
price level accounting
primary water
propeller-type mixer
public utilities
racemin acid
radiant infrared reflow
rate of after culture
Rhomboda tokioi
Saar River
sample receiver
sandbanks
semiretirements
shooped
sliding side door
spotweld
strain-age-embrittlement test
stratigraphic dip
streaming player
subjectate
threedimensional photography
turbine disk
Ulog
universe average
vacuum massage tumbler
venas
vernalized
viatical settlements
videoclass
virtual c-bus service unit
viscids
Voldemortian
wimpish
Wysler's suture
Zond spacecraft