[化] 头-尾聚合物

发表于:2018-12-03 / 阅读(161) / 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(163) / 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(155) / 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(182) / 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(183) / 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(206) / 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(182) / 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(177) / 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(161) / 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(192) / 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(126) / 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(253) / 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(191) / 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(245) / 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(154) / 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(274) / 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(143) / 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(242) / 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(145) / 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(219) / 评论(0) 分类 影视英文歌曲
学英语单词
African Americans
all this time
allotetraploids
an act of congress
aswdu
autothromboagglutinin
bacterial precipitin
Bank Melli Iran
biological detection
birgand
Bronsted acid
camaleo
ciafos
cost responsibility unit
cystic acne
darn,
declared alternate airport
defossilization
diffuse stomatitis
digital coast line generator
Doburil
double berth cabin
down draft gas producer
Ederbringhausen
flacourtia indica (burm.f) merr.
floating base support
furnace outlet screen
game-play
Gas Leak Detection
germicidal ice
gonadotherapy
hospital patient bedside monitoring
illaqueation
industrial-scale
kangaroo droop
karyotypic analysis
kelly clarkson
kinex
laws and regulations of energy
light installation
lion marmosets
literal symbol
Lubims
Lycosuchus
Mababe
marine radiobeacon station
market suspension
Mediterranean fruit fly
mesavac
motor region
narrow-gauge railway
no-decompressions
noise pollution
nonoccupier
nose-ring
opalescent glaze
opportunivores
outstarts
pancreatectomized
para-Basedow
pattern poetry
Pedicularis stenotheca
perfect time
perpendicularly
plastic cyclitis
predenaturation
propellant block
prowlin'
pyridine monocarboxylic acid
pyromaniacal
raglan sleeve
reserve for employee's contributions
reverse osmosis treatment
Rhamnella juliana
Rossetti, Dante Gabriel
Saint Jonh's
scleromyxedema
serranuss
serrated disc
Sewol
shadowscreen
smell of shop
spiral hoop-iron
spoke for yourselves
square nail
Stones will cry out.
straighttongue
submerged endurance
tabiter
tectonic model
to ... delight
trade-marks
tradepeoples
true guava
tuscan orders
undercharacterization
voyage in stages
weak constitution
weight snow-gauge
Windrush, R.
xaw