富集比

Psychologically defined, concentration is the process of centering one's attention over a period of time. In practical application, however, concentration is not as simple to deal successfully with as the definition may imply. For this reason, it is

发表于:2019-01-02 / 阅读(57) / 评论(0) 分类 双语有声阅读

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(115) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt

发表于:2019-01-02 / 阅读(135) / 评论(0) 分类 数学英语

After nearly twenty years of homeownership, Ive spent the past ten months renting an apartment. I like it. And I dont. There are pros and cons to renting a place, just as there are pros and cons to owning a home. For me, one of the biggest cons is th

发表于:2019-01-08 / 阅读(62) / 评论(0) 分类 英语小短文

BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up

发表于:2019-02-04 / 阅读(82) / 评论(0) 分类 英语新闻

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(71) / 评论(0) 分类 英闻天下
学英语单词
Advanced Television
advertising and general publicity expenses
aerial mammals
air tool
alloy bulk diffusion technique
amplitude contour
aquatic ecological efficiency
attincture
augesd
barbaryn
beam with central prop
Bernard Baruch
biddix
Bojanus organ
Bolderslev
break ... in
bring someone to his level
burnahs
capacity-type torquemeter
cargo valve control system
cherry-pickers
Chkalovo
close bevel
cognees
complete refrigerating equipment
coproducts
costus oils
Cotswold
Curtis Grp.
Debussyans
depoaxis
deracinates
discission cataractae
double hulled ship
eccentricity of the earth
excavatio rectouterina
farysia emodensis
federal communications commissions
flipper guide
foreseen loss
forward scatter
fossage
geminga
Glentana
hard pellet
have a good wind
hay-rack
heatspot
herbivourous
hitchess
industrial piercings
inherited immumity
inhibitory enzyme
integral-square-error method
internal wheel spindle
IP (identification point)
kaern
koreagate
lasthenia chrysostomas
lb.
leg-iron
light-regulator
Liouville numbers
long range fishing
long-run average water flow
long-term loans payable-related parties
lost current
lupus erythematosus profundus
magneto sensor
marker effect
Mechlin machine
moving reticule
name-plate rating
neottiophilid
NetBIOS Extended User Interface
neutral beam source
non-expendable funds
nuclear process heat
Oriental bonito
oxygenases
parabolary
Perim Island
power roof ventilator
Pseudo-Dionysius The Areopagite
realty business
safe harness
safety facfor
salpertons
sample strength
scaritines
selectpalette
skims off
skunklike
speak in capitals
staled
thoxidil
toroidal iron core
two-course method
under-capitalisations
viad
weapon and payload identification
zygon