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It was the largest of the five major mass extinctions in earth's history, well before the dinosaur killer 66 million years ago. What's called the end Permian extinction 252 million years ago, wiped out 96% of aquatic species and 70% of species on lan

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 2014年Scientific American(二)月

It exploded with the force of a million nuclear bombs and unleashed the power of the sun. 它爆炸的威力相当于一百万枚核弹,释放出太阳的能量。 It set alight the entire biomass of earth and cooked the atmosphere. 它点燃了地球

发表于:2018-12-28 / 阅读(86) / 评论(0) 分类 侏罗纪搏击俱乐部

考试日期: 2012 年 11 月 3 日 Reading Passage 1 Title: The dinosaurs footprints and extinction Question types: YES/NO/NOT GIVEN, Summary 文章内容回顾 文章从恐龙的脚印开始讲恐龙的灭绝。 英文原文阅读 Mass Extinction

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 雅思机经

[11] Muller's breakthrough was to find a way to date

发表于:2019-01-26 / 阅读(128) / 评论(0) 分类 阅读空间

Unfortunately, having had his insight, Smith was curiously uninterested in understanding why rocks were laid down in the way they were. I have left off puzzling about the origin of Strata and content myself with knowing that it is so, he recorded. Th

发表于:2019-01-29 / 阅读(108) / 评论(0) 分类 万物简史

By David McAlary Washington 10 May 2006 There is new evidence in the case of the missing woolly mammoth. In fact, several species of large mammals in addition to the mammoth went missing at the end of

发表于:2019-01-31 / 阅读(159) / 评论(0) 分类 2006年VOA标准英语(五月)
学英语单词
Achromobacter agile
actinobacillus seminis
Albertini's treatment
ambulatory
any-way
applied behavior analysis
attenuation-constant
black-tier
bomb dolly
box type arm
brachyury
Braiden
capacitive storage welding
circuittopology
cire
clerk in holy orders
clumsier
comparative statement of revenue and expense
Craigleith stone
current instruction current
cyclone bed
danceablest
death caps
directive force of magnetism
elbow crooker
engineering and technical personnel
Entamoeba buetschlii
eructations
etherised
fancy word
feel your ears burning
Fermi-Dirac gas
flashback fire
fluidization quality
forehearth section
four-drum vibratory roller
genus Heliobacter
goes to the toilet
grope after
H scan
hayatine
hemagglutination inhibition reaction
in lover
interferometry of electrons
intermediate-image spectrometer
invest in sth
isoosmotic adjustment
keratinous
kitecs
knobtwat
Komsomolsk(-on-Amur)
Kryms'kyy Zapovednik
Kunon, Bukit
Laikipia Escarp.
Machilus cicatricosa
master clutch release yoke
Medlov
Mentha arvensis
Mirigama
miscellaneous waste
modification of objectives
neolan colours
network deposit
non-miscible
normalized constraint
not much to look at
pararammelsbergite (rammelsbergite)
parishen
pendulum-types
perdicinaes
postimpressionists
priming potential
processcontroller
profit-making enterprises
Proust, Joseph Louis
querier
quickfit joint
rapid-scan spectrometer
raunchiest
reconvinces
reedgrass meadow
sailing list
scrap certificate
seasonal inventory
Serial communications port
shovel-run
sideral
sister humper
smoke sb's coat
stanfields
subboundary structure
subsistence activity
taper bush
TGN41
topological limit
transformation of drug
utero-tubal junction
VAT Value-added Tax
vector compound
well managed
wolf fish
zwischen-ferment