[化] 直链型高分子

本讲为 2006 年下半年新的教学内容,请对照语法、教材、练习册听录音! Text B Return of the Chain Gang 重点词语 deny v./ n. 否定,否认;拒绝接受,拒绝给与

发表于:2018-12-01 / 阅读(231) / 评论(0) 分类 自考英语(二)60讲

What if you could wave your phone over a piece of fish at a store and immediately see a record of its path through the supply chain? 如果你在商店里把手机在一块鱼肉上面晃一下,就能立即看到它在供应链上的路径记录,结

发表于:2018-12-08 / 阅读(166) / 评论(0) 分类 2017年VOA慢速英语(十一)月

This is Whats Trending Today Recently, the operators of a bookstore in Southampton, England made an unusual appeal to people in the community. They sought help moving books and other things to the stores new location, a short distance down the street

发表于:2018-12-08 / 阅读(185) / 评论(0) 分类 2018年VOA慢速英语(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(147) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(178) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(158) / 评论(0) 分类 Scientific American(一)月

Who has a straight face? Vicki: This is Real English from BBC Learning English. Im Vicki. Chen Li: 我是陈鹂。 在今天的节目中, 我们要学的是什么呢? Vicki: Todays new expression is keep a straight face. Chen Li: Keep a straight face. 你能解释一下吗?

发表于:2019-01-02 / 阅读(175) / 评论(0) 分类 地道英语在线听

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(164) / 评论(0) 分类 60秒科学

By now, most people have heard of bitcoin. Bitcoin is a virtual currency that has had a huge rise in value during 2017. Bitcoin however is just one of many cryptocurrencies. A cryptocurrency is a kind of money that does not exist in the form of bills

发表于:2019-01-03 / 阅读(176) / 评论(0) 分类 2018年VOA慢速英语(一)月

我们今天要说的三个习惯用语都用来描绘人的忠诚可靠,不偏不倚和品行端正。第一个是: straight arrow。 Straight是直的,而arrow是箭,straight arrow从字面上看是笔直的箭,straight arrow,宁折不弯,

发表于:2019-01-07 / 阅读(184) / 评论(0) 分类 美国习惯用语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(213) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(164) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(214) / 评论(0) 分类 Scientific American(四)月

今天我们要学的词是 chain。Chain 除了大家都知道的,有锁链的意思,还有连锁店的意思。The American drug store Walgreens became the first retail store chain to expand its services to include diagnosing and treating patie

发表于:2019-01-09 / 阅读(203) / 评论(0) 分类 英语单词荟萃

COPENHAGEN, Feb. 18 (Xinhua) -- German supermarket chain Lidl in Denmark has found traces of horse meat in a pasta dish, the supermarket annouced late on Monday. A pasta dish called Combino Penne Bolognese from the manufacturer Copack has been found

发表于:2019-01-09 / 阅读(187) / 评论(0) 分类 英语新闻

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(122) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(233) / 评论(0) 分类 VOA标准英语2016年(二月)

Once upon a time, there was a poor fisherman who always dreamed of becoming rich. He wished to become a millionaire, and so did his wife. 很久以前,有个贫穷的渔夫,他总是梦想着能够发大财,希望自己能够成为百万富翁,

发表于:2019-01-17 / 阅读(123) / 评论(0) 分类 英文励志文摘精选

Listen to the wind blow Watch the sun rise Run in the shadows Damn your love Damn your lies And if You dont love me now You will never love me again I can still hear you saying You would never break the chain. Listen to the wind blow Down comes the n

发表于:2019-02-11 / 阅读(148) / 评论(0) 分类 The Voice 美国好声音

这首歌于1961年发布的时候很受欢迎。连同他的和声组合Raelettes,查尔斯唱出了想离开一位不想让他离开的女性的感觉。这首歌在流行歌曲列表上达到了第九位,在RB单曲榜上排行第一位,同时

发表于:2019-02-11 / 阅读(275) / 评论(0) 分类 英乐时空
学英语单词
.et
acetylbalchanolide
aeration of rudder
an x-ray photograph
anayacsi pk.
animuses
aromatic polyamide cord
asprellas
Augustus, Mt.
bardwan (burdwan)
Batangafo
bitnik
bolt-locking lug
budget allocations
cause-specific death ratio
cecrolysin
check valve case
chevelon creek
circum ventricular organ
co-believer
colletotrichum spinaciae
congenital renal cystic disease
continuous film scanner
corona protection
cross-buck sign
daucine
deadnuts
deep abscesses
defined pension plan
departmental manufacturing overheads rate
divine messengers
dizzinesses
donothingism
edmintons
eleven plus
endoscopic fulguration of tumor
epizoonosis
flash down
flipflopper
force the pace
frogurts
gaussian random vibration
generating voltage
geriatricss
hafnium additive alloy
Hamilton-Swartz test
high silicon bronze
hipt
hydro-structure
ilesugerin
inconel
initial assessment
internal absorbance
interosseous cuneocuboid ligament
kassab
key pad telephone set
kryogen brown A
lagging correlation
Lauwerzijl
lavender print
linguistic process
lithographic limestone
massara
Meni-D
mimeographed
minucci
misoperate
mock-leathers
molybdenum nutrition
natalija
one tail
parautochthonous granite
plummier
Poa asperifolia
pot-hangings
public - private partnership
R-ratio
read_modules
Regio occipitalis
reversed cyclic action
rock depression
sapones medicinales
slit sampler
snackwell
Sojongni
sonar repeater
Sorgono
stab in
stable laser
step this way
stick motion
suck my dick
Theophylline-Minsheng
tormentingly
ultraviolet erasing
unstable airfoil
V-type internal combustion engine
vertex damage
video display unit
voltage regulator armature
wire teletype
zircronate ceramics