氧化铁残渣

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. In the spring of 1912 an iceberg in the Atlantic took down the Titanic. Now, some humble bacteria are trying to finish the job. Scientists analyzing rust f

发表于:2018-12-24 / 阅读(66) / 评论(0) 分类 Scientific American(十二)月

By Naomi Schwarz Northern Mauritania 17 October 2007 In arid Mauritania, where Sahara desert meets Sahel grasslands, a train stretching up to two and one half kilometers snakes along the northern border. Built to carry iron ore from mines in the nort

发表于:2019-01-07 / 阅读(60) / 评论(0) 分类 2007年VOA常速英语(十月)

I caught you crying Trying to hide your tears away And all the while I never knew you felt this way I've loved you from the start How could we let this come apart? We've got to put The sun back in our hearts Through the alleyways The avenues ans dre

发表于:2019-01-11 / 阅读(122) / 评论(0) 分类 音乐咖啡厅

RIO DE JANEIRO, May 23 (Xinhua) -- Midfielder Paulo Henrique Ganso will undergo surgery on his right knee, forcing him out of Brazil's upcoming friendlies against Denmark, the US, Mexico and Argentina. The 22-year-old will play for Santos against Arg

发表于:2019-02-03 / 阅读(59) / 评论(0) 分类 英语新闻

By CCTV reporter Ning Hong Efforts to reduce air pollution in China seem to be accelerating. In a coordinated action on Sunday, local authorities pulled down facilities in three cities in Hebei Province, a main center of iron and steel manufacturing.

发表于:2019-02-04 / 阅读(45) / 评论(0) 分类 CCTV9英语新闻2013年11月

托福听力中细节题目庞杂,转折、对比、问答、强调、解释等等,整个听力过程中都需要高度戒备,以防掉入ETS挖的陷阱中去。本文就且集中探讨一下细节题中常见的一类:举例细节题。 首先

发表于:2019-02-13 / 阅读(35) / 评论(0) 分类 托福英语
学英语单词
ABC soil
adelas
administrative man
ammunition leg
anonymous function
background noise criteria
baritonal
batch furnace
be seeing someone
beck's hydrometer
beween
book - of - the - month club
brovet
case of counterrevolution
chemical and biological weapons
computer-aided manufacturing
conical-scan tracking
contactor controlled traction equipment
costoclavicular line
cylindera shirakii
cytogenic gland
degenharts
diamond matura
diaplacental infection
double nuts
dumbify
duplachionaspis divergens
Ediacara
educational reform act
ethynylations
exon-amplifications
fenochii
flimflams
fpscr
gain band merit
gazophilace
genus vincas
gourds
grieveth
hide-and-go-seek
hollow draw-in spindle
homomorphic signal processing
honey parrot
Hormizd IV
horotelic(simpson 1944)
intemperatenesses
izimbizo
keep way
Koroikovu I.
labech
leucylpepidase
loan bank
loco term
London International Freight Terminal
Lost Nation
lotoflavin
macrogametes
malacostracan crustaceans
mealybugs
medullary cancer
moisture seal
mori poll
network operation system
network traffic
non-assertive
one-hundred-millionths
outriden
plastic-sheathed
Point Lookout
polydnaviral
preeducation
prodigy
pull a fast one
pyricularia leersiae
qualmiest
rami anterior ascendens
read-back signal
receive the canvas
record structure
resculpted
resupplies
rigourist
rokat
roseapple
rubble-stones
ruggedises
Saddle Pk.
sequential evolution
Silesian
slave pulses
sphenopsidas
SSC-4
submarine-borne missile
thrombophylactic
Trapa litwinowii
twenty-four fortnightly periods
ultrametamorphic
unenviability
Valognes
Venezuelan asphalt
victim-hood
well-mined