4-苯基-1-丁醇

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(84) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(36) / 评论(0) 分类 初学者听力文摘精选

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 Scientific American(十一)月

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(121) / 评论(0) 分类 英语新闻
学英语单词
alaunt
applied hydromechanics
as well-known as Paul's
association of coverrnent accountants
backing-space technique
ball and socket type
Bedum
bipartite type
bottom boundary
Bukakke
campestrin
carboloy dioxide analysis
Carlsbad twin
caryoclasis
cask smell
Cerasi
coldfinger
colon dyspepsia
compressed video
defolliculates
deka-watt
demutation
denticuligerous
deposits received
divergent thinker
double bounce
early strength cement
fingerfucks
fragilocyte fragility
frame type b
gist memory
gleyzation
glycerophosphocholines
growth hormone deficiency
Heimdallr
hepato
highly-enriched
howsit
hsv color model
HZs
IDBY
in between position
integrated biological-chemical process
international standard number
Karyinite
Kwong On Finance Limited
lay a hand on sb
like so
linzey
Litledalen
Lycophyta
Mannagettaea hummelii
marsh coast
midarm
Milogradovo
Ming-Kush
minoritising
mixed speed
Moesogoths
molten particle deposition
multilemgth
n. splanchnicus major
Naborton
nasolabial lymph nodes
nonclonotypic
nonemetic
O-levels
osb
packing factor (darlington & upcott 1939)
passeres
personal liability insurance
phenobarbital elixir
pibroches
post-contouring
probe damage
Reggeism
ribbon building
roark
roseo-compound
runway alignment indication (rai)
shortfalling
Sibuti, Sungai
signal-code
sketch-a-saurous rexes
stereospermum sinicum hance
stereovectorelectrocardiogram
sympathin I
taproot system
temper-brittle
thallium(iii) bromide chloride
twinning plane (twin plane)
ultrasonic dicing
under voltage timer
unit square
Unnaryd
urban extension
valve lifter guide
vector operation
vorant
Watteau
work habits
working set