[=methyl n-(2-chloroethyl)-n-nitrosocarbamate]n-(2-氯乙基)-n-亚硝基氨基甲酸甲酯

Feed Your Mind 充实你的思想 Since the pre-historic times, man has had an urge to satisfy his needs. Be it hunger, shelter or search for a mate, he has always manipulated the circumstances to the best of his advantages. Probably this might be the rea

发表于:2018-12-07 / 阅读(383) / 评论(0) 分类 美丽英文

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发表于:2018-12-13 / 阅读(325) / 评论(0) 分类 大英儿童百科全书--ME

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发表于:2018-12-13 / 阅读(338) / 评论(0) 分类 大英儿童百科全书--ME AND YOU

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发表于:2018-12-18 / 阅读(418) / 评论(0) 分类 小学英语作文

This is Scientific American 60 second Science, I'm Cynthia Graber, got a minute? Were not the only animals that like to knock back the hard stuff. Studies have shown that some mammals seek out food and drink that naturally contains alcohol. And accor

发表于:2019-01-08 / 阅读(265) / 评论(0) 分类 Scientific American(二)月

海峡拥有高超的不鲁斯吉他技巧,低沉嗓音的半说半唱,成熟睿智的歌词,以及难以言表的宽厚情怀,整个八十年代,不知多少人依*他们的音乐,完成了由青春向成年的过渡,不知多少人被那

发表于:2019-01-08 / 阅读(328) / 评论(0) 分类 音乐天堂

Have you ever taken a good look at your dog and wondered, where did this creature come from? Sure, you know your dog came from the local shelter or a pet store, but what about before that? If you were able to trace your dog's lineage back to its orig

发表于:2019-01-22 / 阅读(390) / 评论(0) 分类 英语时差8,16

Archaeologists set out recently to unlock one of the secrets of Stonehenge, the majestic monument in southern England-when were the first standing stones placed at the ancient religious site? The concentric stone circles that make up Stonehenge, 13

发表于:2019-01-22 / 阅读(320) / 评论(0) 分类 英语时差8,16

Don: Oh, Yael, I just read the most beautiful poem. No wonder our ancestors developed writing--they probably wanted to treasure poetry for posterity. Yael: Actually Don, writing was developed to keep track of more mundane things, like money. For exam

发表于:2019-01-22 / 阅读(332) / 评论(0) 分类 英语时差8,16

In this Moment of Science Don and Yael discuss how our emotions might change as we age. D: The older my parents get the more boring they become. First of all, they always spend their time with the same group of friends. They rarely go out and meet ne

发表于:2019-01-22 / 阅读(427) / 评论(0) 分类 英语时差8,16

You're driving along on your way to deliver some helium balloons to a birthday party. Suddenly you hit the brakes. As your car rapidly decelerates, you feel yourself pushed up against the wheel. Why? That one's probably not too tough. Although you ma

发表于:2019-01-22 / 阅读(329) / 评论(0) 分类 英语时差8,16

Ya?l: Today, on A Moment of Science, another episode of guilty confessions. That's right. Don is going to confess a secret, and then we'll use science to help him understand it. Don: I confess nothing, Ya?l. My conscience is clear. Y: Then how come I

发表于:2019-01-22 / 阅读(316) / 评论(0) 分类 英语时差8,16

Dear Annie: I am 17 years old and my brother is two years older. When he started dating Kim, everything was fine, but as I got to know her better, it became clear that she is just using my brother. I asked my mom what I should do, and she said I shou

发表于:2019-01-22 / 阅读(260) / 评论(0) 分类 英语时差8,16

Surprise at Stonehenge! Wizards and aliens aside, actual scientists don't have much to say about Stonehenge--the ancient ring of rocks in Amesbury, England--that hasn't been said. That is, until now. Just recently a four-thousand-year old gravesite w

发表于:2019-01-22 / 阅读(288) / 评论(0) 分类 英语时差8,16

Fact: liquid water is heavier than air. Fact: clouds, which consist of water droplets and ice crystals, seem to hover in the air. One final fact: the water droplets in a typical cloud together weigh many tons. Which raises a question: how do clouds s

发表于:2019-01-22 / 阅读(339) / 评论(0) 分类 英语时差8,16

Technophobia What? Technophobe: Someone who does not like, trust, or want to use technology, especially computers. (Macmillan English Dictionary)Technophobia is not a new term and technophobes have existed since the Industrial Revolution and probably

发表于:2019-01-22 / 阅读(392) / 评论(0) 分类 英语时差8,16

24强晋级赛在著名的日落大道上的蓝调之家继续进行,在上一场经过最终现场展示环节后,评委们将开始决定谁会进行现场演唱,从而赢得全美观众的选票。本期节目23名参赛者争夺剩下11个席

发表于:2019-02-05 / 阅读(390) / 评论(0) 分类 美国偶像 第十四季

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发表于:2019-02-10 / 阅读(268) / 评论(0) 分类 牛津Oxford English Time 6 CD1

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发表于:2019-02-10 / 阅读(344) / 评论(0) 分类 牛津Oxford English Time 6 CD2

As in the last war, the soldiers dig in and try to make the best of things. 如同上一次大战,士兵挖掘防御工事,并充分利用一切。 The French soldier, Jastone Schiller, writes to his wife. 法国士兵席黑克写给妻子。 It'

发表于:2019-02-26 / 阅读(360) / 评论(0) 分类 二战启示录
学英语单词
abrikosov
Acuyo
arithmetical difference
audit of government funds
Australioid
ball forming machine
boat amphibian
boil-up
bull and cow
byte machine
C.No
canary grasses
center of affinity
chorion ovi
clamose
compounding paper machine
corallorhiza maculatas
counting function
covered bowl
dischort
discrete search
drink shops
dual pressure system
electrostatic electron microscope
emery-board
emmott
erotogenicity
eye spud
ferric lactate
flare tower
fly tent
focusing mechanism
frenchified
guns for hire
Haemosporidia
heating stylus
hibernation mode
high vacuum technique
high-and-low water alarm
hollow dorged drum
hypophysial plate
inlet manifolds
input/output limited tape
is in the way
jaweenah
Kara OK
low energy electron beam irradiation
luminescence effect
mangrie
maximum discount
method of are analysis
metricized
midika
moderator pressure coefficient
monothelious
Mungyeong
Offence of Major Accident
onesixth
osteoarcheological
Owena, R.
oxyprolinemia
pantleg
paris-match
pigmentary disorder
pooled judgement
proceed against
pumping station for irrigation and drainage
pyrolytic decomposition
Quinault
radio sonobuoy and hydrophone
ratio by weight
ray acoustic
retrocausal
return-flow type oil atomizer
scleroblastemic
SDBA
separation axiom
simple vortex
sinoside
slavomirs
Spalacidae
spiritual development
spleenful
stellar activity
stemborer
superior ganglion of glossopharyngeal nerve
taintor weir
take ... as it comes
tetrahedrite-tennantite series
That street is only two miles long
the roma
thresk
to give change
tomasina
total hardness of water
Trichodesanthin
Tshangs-pa Dkar-po
unattended beacon
UNRRA
us time
vinyl chloride-acetate copolymer
zoosterol