[化] 头-尾聚合物

发表于:2018-12-03 / 阅读(178) / 评论(0) 分类 阶梯听力天天练

[00:23.85]Snake Anut [00:28.91]我的阿姨是条蛇 [00:37.09]There was just enough moonlight for him [00:39.86]to see the bottom of his door, [00:42.82]so he blew out his candle and unsheathed his sword. [00:48.00]Then he stood waiting. [00:51.17]He watch

发表于:2018-12-11 / 阅读(180) / 评论(0) 分类 英语灵异故事

Lesson 93 Tadpole And Frog 第93课 蝌蚪与青蛙 Children who are fond of country walks, and who use their eyes well, 喜欢在乡村漫步并且善于观察的孩子们 will be sure to notice in early spring little lumps of jelly floating on some

发表于:2018-12-18 / 阅读(179) / 评论(0) 分类 英国学生科学读本

These bristles point backwards. 这些刚毛朝向后方。 If we move a finger along the worm from the head to the tail, the body feels quite smooth; 用一根手指从蚯蚓的头部摸向其尾部, 就会感觉它的身体非常光滑; but if we

发表于:2018-12-18 / 阅读(214) / 评论(0) 分类 英国学生科学读本

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(197) / 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(226) / 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(194) / 评论(0) 分类 Scientific American(一)月

九地篇 NO.4: 故善用兵者,譬如率然。率然者,常山之蛇也。 击其首则尾至,击其尾则首至,击其中则首尾俱至。敢问兵可使如率然乎?曰可。 夫吴人与越人相恶也,当其同舟而济而遇风,其

发表于:2018-12-29 / 阅读(192) / 评论(0) 分类 孙子兵法

It was on the third turn that he saw the fish first. He saw him first as a dark shadow that took so long sto pass under the boat that he could not believe its length. No, he said. He cant be that big. But he was that big and at the end of this circle

发表于:2018-12-31 / 阅读(202) / 评论(0) 分类 有声英语文学名著

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(213) / 评论(0) 分类 60秒科学

not a word to anyone 保守秘密 not at all 不要紧 not bad 不错 not being oneself 不太舒服 ; 身体病态 not make head or tail of 完全不懂 not much of anything 什么也不行 not on yo

发表于:2019-01-03 / 阅读(136) / 评论(0) 分类 英文名句短语

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(279) / 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(207) / 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(273) / 评论(0) 分类 Scientific American(四)月

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(175) / 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(298) / 评论(0) 分类 VOA标准英语2016年(二月)

Lesson 69 The Finny Plaice 第69课 欧鲽鱼 The plaice is one of the fishes that we call flat fishes, such as the sole, the flounder, and the turbot. It is from twelve to eighteen inches long, and weighs about two or three pounds. As in all the fla

发表于:2019-01-17 / 阅读(159) / 评论(0) 分类 英国学生科学读本

今天我们要学几个有turn这个词的习惯用语。Turn是个很普通的词。它当动词的时候意思就是转动。我们要学的第一个习惯用语是: turn tail。 Tail是尾巴,猫或狗在面临什么威胁的时候,往往会调

发表于:2019-02-03 / 阅读(271) / 评论(0) 分类 美国习惯用语

英语口语:有关钱的英语表达 1. 钱生钱:money begets/breeds/draws/gets. Eg. Whats the key to make money? 挣钱的窍门是什么呢? Money gets. 让钱生钱。 2. 钱也有口角? good/bad money: 也就是能/不能生钱的钱~~

发表于:2019-02-07 / 阅读(156) / 评论(0) 分类 实用英语

Edna Million in a drop dead suit Dutch pink on a downtown train Two dollar pistol but the gun won't shoot I'm in the corner in the pouring rain 16 men on a deadman's chest And I've been drinking from a broken cup 2 pairs of pants and a mohair vest I'

发表于:2019-03-02 / 阅读(233) / 评论(0) 分类 影视英文歌曲
学英语单词
aamg
acrylate plastic paint
alter course to
anarak
apparent equatorial coordinates
appeasable
be all there
blood-group antigens
buckle guy
by-position
Center text
cerebellins
Charles Dana
clearance depot
cleared for takeoff
composite duct
core buster
costae arcuariae
critical circuit
Dangenstorf
Darlington synthesis
decisionmaker
decreasing
Delaware City
densely distributed
detail group
dijla
display visibility
eating quality
elnas
ephah, epha
erythrodermatitis
ethyl carbostyrile
family tetragoniaceaes
fox whistle
fresh-
fundamental chain
gaze damassee
gliding ratio
grubel
Guttannen
halakhot
hard timess
historiaster
homoflexibility
hub-and-spoke systems
i-holden
Inmunoferon
interaction potential
irrigation bonds
isoficine
it would seem
Jenssen cooler
laidbackness
Lappvik
leading skirt
lending agent
longitudinal electrostatic wave
lumped mathematical model
Mairiporã
master cylinder head gasket
mean neap rise of high tide
mercaptopropionic
micro Kjeldahl method
microorganism resistance
midnightmare
moekul
multi valve
nanowatt circuit
not to know B from a a bull's foot
on her own
optical engineering
ostreogricin
phase-to-phase fault
phronima solitaria
pieris formosa don
plate load impedance
police escort
prei
pressest
price manipulating function
procuticle
quitoure
refrigerated industry
Root's meter
Satn
screenwash
Sgr
sida
soil new growth
Stokes's liniment
subintrance
São Filipe
thin cutter
triboelectric relationship
uproar
vertical investment
waist-level
wear resistant cast iron
weed-cutting launch
XSRF
zongzi