四氢生物嘌呤

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发表于:2018-11-30 / 阅读(308) / 评论(0) 分类 24篇魔术美文串记4级词汇

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(99) / 评论(0) 分类 Scientific American(一)月

蒋健棠听说学英语 Chapter16:The wildlife biologist

发表于:2018-12-26 / 阅读(121) / 评论(0) 分类 蒋健棠听说学英语

Melody 1 from the Other World In October on the east coast of Australia migrating humpback whales 2 pass very close to the shore. With the help of Max Egan, we went to film them near Byron Bay. It was

发表于:2018-12-30 / 阅读(284) / 评论(0) 分类 英语沙龙2004全年合辑下

Natalie: Why are you wearing that gas mask? Anton: Im getting used to it. If we ever have a bioterrorist attack, Ill be ready. Want to try one on? Natalie: No, thanks. If we get involved in biological warfare, I think well have some warning. Anton: T

发表于:2019-01-01 / 阅读(63) / 评论(0) 分类 地道美语播客

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04

发表于:2019-01-02 / 阅读(139) / 评论(0) 分类 科技之光

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 VOA2003(下)-农业与经济

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(85) / 评论(0) 分类 医务英语

D Dahurian Rhododendron Leaf P.E 满山红提取物 Daidzein 大豆甙元 Daidzin 大豆甙 Dandelion P.E 蒲公英提取物 Daphnetin 瑞香素 Daphnin 瑞香甙 Daucosterol 胡萝卜甙 Dauricine 蝙蝠

发表于:2019-01-03 / 阅读(97) / 评论(0) 分类 医务英语

This is scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Predicting a hurricanes strength and speed is crucial in order to save property and lives. Right now, the only way to get accurate information is to fly

发表于:2019-01-08 / 阅读(95) / 评论(0) 分类 Scientific American(四)月

Locals in Uganda are lauding a construction project financed by China which is creating the East African country's largest hydroelectric power plant. The 600-megawatt (MW) Karuma Hydroelectric Power Plant is located at the mid-western district of Kir

发表于:2019-01-19 / 阅读(148) / 评论(0) 分类 2018CRI中国国际广播电台

HYDROCEPHALUS Merriam-Websters dictionary defines hydrocephalus as an abnormal increase in the amount of cerebrospinal fluid within the cranial cavity that is accompanied by expansion of the cerebral ventricles, enlargement of the skull and especiall

发表于:2019-01-23 / 阅读(190) / 评论(0) 分类 英文短篇小说

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(107) / 评论(0) 分类 科技之光

AGRICULTURE REPORT - Biocontrols, Part 2 By Mario Ritter Broadcast: Tuesday, April 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biocontrols are the way nature seeks ba

发表于:2019-01-30 / 阅读(93) / 评论(0) 分类 农业与发展

俄罗斯莫斯科的一位生物能量学教授近日宣布,他已研制出一种能够有效延缓衰老的不老药,并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂,能够有效抑制氧分子对人

发表于:2019-02-06 / 阅读(122) / 评论(0) 分类 阅读空间

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(109) / 评论(0) 分类 万物简史

One of the most common questions cancer patients ask their doctors is: has the disease been contained or will it spread. A recent study by U.S. and Chinese researchers may help provide clues. The scientists examined genetic(遗传的,基因的) m

发表于:2019-02-18 / 阅读(45) / 评论(0) 分类 英语新闻

The charts compare the source of electricity in Australia and France in the years 1980 and 2000. Between these years electricity production almost doubled, rising from 100 units to 170 in Australia, and from 90 to 180 units in France. In 1980 Austral

发表于:2019-02-25 / 阅读(90) / 评论(0) 分类 托福英语

His's perivascular Chinese希斯血管周隙(脑与脊髓血管动脉外膜和神经胶质血管周围界膜之间的间隙) His's zones Chinese希斯区(胚神经管的四个纵增厚束) Histology Chinese组织学 Hitzig's gridle Chinese希茨希带(与乳房同高的一环状痛觉缺失区) Hitzig's test Chinese

发表于:2019-02-26 / 阅读(111) / 评论(0) 分类 英文语法词汇

本期内容: Leaders from nearly 200 nations signed an agreement to phase out hydro fluorocarbons, chemicals used in refrigeration and air conditioning. In the 1980s the Montreal Protocol replaced chlorofluorocarbons, which were known to harm the

发表于:2019-03-02 / 阅读(96) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
a nobody
actaroviolin
alimonies
angle measuring tool
anovulational menstruation
Anton Rubenstein
ANTU poisoning
asks someone out
back-cloth star
basin-shelf fractionation
beat the market
behavior mechanism
Beloslav
bfh
broadcast receiver
Bullard Fracture Zone
cadmium yellows
casting glass
cattiest
checkweighman
coined money
comandante nicanor otamendi
conjugate torque
constant dollar accounting
county government
deuterochlorofrom
direct picture
discharged
distributed query processing
double-ended queue
drill unit with fertilizer attachment
felsenmeer
fuscatus
genus Ovibos
get a packet
harcrow
Hartley algorithm
have a crow to pull with someone
high-activity area
ichthyotomist
incomplete measure
Kampli
Kaokoveld
leading counsel
lipid-globular protein mosaic model
Liriope spicata Lour.
low-pressure moulding
Lyly, John
malcoils
megapodiids
mess treasurer
microaneurisms
Mobius strips
Mogor(Mogur)
monorchids
movable-bed model test
muicrocentrum
Murcia, Prov.de
murder one
native languages
normal direction of rotation
nuclear fireball
oceanic evaporation
Odissi
oil transformer
on-site power
one-was
peak-load station
perturbed lattice
plumb pile
polyipnus danae
poor doer
product costing
rated wind speed
reactive disorder
recorrection
reference copy
Rengshausen
risible nerves
scientific applications
sea fern
shore hardness d
simple dislocation
single-step mode diagnosis
skybald
smiddies
somewhere along the line
syndrome of accumulated heat due to fetal toxicity
texturing effect
theoretical numerical aperture
thoracic splanchnic ganglion
thrombodynamics
transplantee
tubing caliper
unasnwerable
us n
verk
visible and near-infrared response
whatya
wig trees
wire rope for inclined plane