[网络] 四羟基蒽二酮

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发表于:2018-12-18 / 阅读(286) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(231) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(303) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(250) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(242) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(275) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(266) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(293) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2018-12-18 / 阅读(300) / 评论(0) 分类 儿童英文广播剧在线听

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(146) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(130) / 评论(0) 分类 医务英语

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(117) / 评论(0) 分类 医务英语

By Greg Flakus Houston 02 August 2007 A bridge spanning the Mississippi River in the Midwestern city of Minneapolis collapsed Wednesday, during the evening rush hour, dumping scores of vehicles into the river. At least seven people died and local hos

发表于:2019-01-07 / 阅读(179) / 评论(0) 分类 2007年VOA标准英语(八月)

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(149) / 评论(0) 分类 VOA标准英语2012年(三月)

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发表于:2019-01-17 / 阅读(281) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2019-01-17 / 阅读(265) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2019-01-17 / 阅读(243) / 评论(0) 分类 儿童英文广播剧在线听

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发表于:2019-01-17 / 阅读(279) / 评论(0) 分类 儿童英文广播剧在线听

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(110) / 评论(0) 分类 英语新闻

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(156) / 评论(0) 分类 万物简史
学英语单词
4-imidazolidinone
alkaline sintering
Aminocor
ampelideous
artfags
Athapascan, Athapaskan
baccha sauteri
basophilic cartilage
baulieu
behind-closed-door
Bilaa Pt.
body conformation
Boleyn
borras
brakan
bronchoscopically
chen-yuen
chick livability
Clematoclethra guangxiensis
clot culture
coal screening
complex line drawer
constant tension control
Corispermum chinganicum
corridor of uncertainty
corroding house
credit decisions
Cross Currency
cruciform symmetry
curtos impolita
D of L
dalasis
Daraw
data exfiltration
demographic variable
Deutzia cinerascens
drill test
Dumaring
electromagnetic velocimeter
exesion
face-to-face sales
farm-carts
fear-based
gentlemanly education
ground surface subsidence over tunnel
group order
Guleman
halfway through
have jam on one's face
heterocosm
island ice
key point of control
lackings
Lassa virus
ligustrum iboliums
lummer fringe
medievalistic
mediterraneans
mibuna
mountain-dwelling
NADEFCOL
news center
nonunital
NSC-109229
on the bow hand
overall drawing
pa ka ou la
panthea
pedatiaceae
physical occupancy
plastic-lineds
Polycarpon prostratum
pranksomeness
pseudo convexity
public entrepreneur
radar display room
Radar Research Establishment
residential demarcation
rotatingiron
routine job
shark-fishing
sintered diamond tool
sleeve dog
small block
solution heat exchanger
squealing
stereomould
stigmatized
sustoxin
tail-heaviness
thailand (siam)
to collide with
traversing caisson
trazitiline
trichome
truncatella amaniensis
URTIs
velite
vibratory control
vice-secretary
viscose high tenacity yarn
wavy terrain