3-氰基吡啶

A: What does it cost to ride this bus? B: The fare is $1.25. A: Have you been driving buses a long time? B: I haven't been driving for longonly for a few months. A: Do you like to drive the bus? B: Not in the least bit. A: I would have never dreamed

发表于:2018-11-30 / 阅读(106) / 评论(0) 分类 英语情景对话-日常生活

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. NationalGeographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2018-12-30 / 阅读(63) / 评论(0) 分类 国家地理2008年

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2008年

The planet also began releasing oxygen, thanks to an ancient adoption of photosynthesis. A very ancestral primitive plant cell either engulfed or tried to digest or surrounded a cyanobaterium and instead of digesting it, it actually became an organ w

发表于:2019-01-23 / 阅读(52) / 评论(0) 分类 探索与发现2014年

 Superglue 强力胶 Male: Help!Help! Female:What's wrong? M: I was fixing my coffee cup with superglue .And I must have got some on my fingers but I scratch my forhead.And now my hand is stuck to my head. F: Superglue ? Cool! What makes supergl

发表于:2019-01-26 / 阅读(48) / 评论(0) 分类 英语听力文摘 English Digest

By Brian Padden Irbil, Iraq 17 August 2007 The death toll from a series of suicide attacks on Iraq's Yazidi sect on Tuesday continues to rise. Officials now estimate at least 400 people were killed and hundreds more wounded when four truck bombs expl

发表于:2019-02-03 / 阅读(106) / 评论(0) 分类 2007年VOA标准英语(八月)
学英语单词
abstract labo(u)r
adonistal
Armenian disease
automatic pipet
autotronic system
basalar plate
bean sprouts medium
begonia pinglinensis
Bieldside
biotin-avidin
Blake Plateau
bonitonic acid
Bunge-Trantenroth method
cakobau
cesium telluride
chlorinated polyvinyl chloride solution adhesive
closed-end investment companies
combatant commander
Corrosion Analysis
covering of the seeds
crankset
dad joke
decaying stage
dichlorhydrin
digital audio video council
diiambus
diimine
dimidiating
eggplant-colored
enterprise architecture model
Faraday's disc dynamo
faulty driving
firmware monitoring
genus klebsiellas
gypsum lime mortar
Henry-sophister
hit-test code
indy
inextenso
instruments for acupuncture and moxibustion
irradiated fuel store
junction leak
kidcope
limpiar
linctuses
matrix matching
meatus acusticus externus
mid-layer
minimum horse power
miswite
muscoids
nasal atomizer
nasal dyspnea
niquelandia (sao jose do tocuntins )
non-skid cover
omophoria
opening batsmen
oprahs
palatopharyngealis
paroxysmal asphyxia
pat-downs
potassium auric bromide
prominent resonances
pupusa
quasi-linear elasticity
ratio of overload
return to power
rough washer
Rupert's drops
Russian olive
sand vipers
science and technology
selective erase
semi-computable set
snobbism
snoutiest
soilermaker
soula
splanchnic branch(or median visceral branch)
statistical lithofacies
step and platform topography
straight iron powder
stratified one stage sampling
superficial anesthesia of eye
suspended fourth
talking dirty
tenaunt
thermal detector
tree canopy
trialing
trittons
true height altitude
two-sided alternative
unimplemented
union of concubinage
unsubscribed capital stock
unz
walkway clearance
wall heel
wallwort
white lupine