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This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(四)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 Scientific American(二)月

大学应该是一个用英语战斗的时代:用英文获得专业最新信息;直接阅读英美主要杂志(非常难懂);用英语参与国际会议和谈判;用英语发表论文;用英语介绍中国产品(包括写说明书、广

发表于:2019-01-08 / 阅读(29) / 评论(0) 分类 实用英语

Hormones in the Body Up to the beginning of the twentieth century, the nervous system was thought to control all communication within the body and the resulting integration of behavior. Scientists had determined that nerves ran, essentially, on elect

发表于:2019-01-08 / 阅读(52) / 评论(0) 分类 托福英语

大学如何学好英语

发表于:2019-02-09 / 阅读(43) / 评论(0) 分类 英语学习方法

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上,我们感兴趣的部分并不是细菌会不会发光,而是细菌何时发光。 What we noticed is when the bacteria were alo

发表于:2019-03-04 / 阅读(99) / 评论(0) 分类 TED演讲教育篇
学英语单词
aerobic bacterium
automatic correction device
Automatic Recloser
be seized with
blade with reinforced root
bodenheimer
burning off
bursates
businessworthiness
cable vulcanizer
carbon bisulphide
cataphysical
chainley
ching chong
Chitalpa
colotyphoid
complex reaction time
conference for supplementing goods
Conflenti
continuous radiation
contraction in division
conveyer worm
cost centre
decalcification potential
diaperish
dissolution of partnership
double-pumps
dry decatizing
eccentric disk arm
edit pulse
electronic mail (e-mail)
equinoctal
equiponderate
extraction pump
eyes pop out
eyre, lake
focus in object space
folimat
fossil-fueled
frustraters
fueling-at-sea station (fas)
gadabas
glycerols
golden-coloured
greyfriars
hip-pockets
hydrogen-alpha
hypercarb process
irming
isothermal quilibrium
kentwell
kheis system
large shareholder
Laskowski Seamount
low-involvement product
Loxostege
Marbach am Neckar
massa sublingualis
message appeal
microbial hemolysin test
Minano
minimum competency testing
minimum wetting rate
moving-coil seismograph
Mozharovka
MTS (memory test system)
multi-head automatic welding machine
N-acetylserotonin
negligence clause
nt2 (network termination 2)
nuclear-submarine
overexciting
Ph549
play acting
plutonium poisoning
pole-zero compensation circuit
preside over the business
quality movement
revolving
rice caddis fly
riehl
RSSR
serving of cable
shim-safety rod
Showalterian
sky light
soil funna
standard rate turn
steam-heating
subtroposphere
survey beacon
sviatonossite(andradite sodasyenite)
symblepharopterygium
transparent plastic sheet
transshipment acitivity
tris-1,10-phenanthroline-ferrous ion
two-stage holdback device
unfinished bottom
urceolatus
viewing angle of screen
water tailpiece