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Gene Therapy Halts Vision Loss in Dogs Researchers have stopped vision decline in dogs with an inherited disease that causes blindness. The gene therapy technique they used may someday stop vision loss in humans. Retinitis pigmentosa (RP) is an eye d

发表于:2018-12-16 / 阅读(45) / 评论(0) 分类 VOA标准英语2012年(二月)

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(37) / 评论(0) 分类 2015年Scientific American(一)月

[00:06.37]Some people cannot see all colors correctly. [00:10.92]They cannot see all the colors in a rainbow or a sunset. [00:16.40]They cannot tell if the meat they are cooking is done or if a fruit is ready to be eaten. [00:23.61]Poor color sight a

发表于:2018-12-26 / 阅读(35) / 评论(0) 分类 美国英语听力80篇

Night Vision And Humans: Why Cant We See Color? When we are in a fairly dark room, or outside at night away from lights, we can still see, but we cant see the colors of things very well. Why is that? There are two kinds of light-sensitive organs loca

发表于:2018-12-31 / 阅读(53) / 评论(0) 分类 英语听力文摘 English Digest

By David McAlary Washington 10 March 2006 Mars Reconnaissance Orbiter Another U.S. spacecraft has begun orbiting Mars to study the red planet in unprecedented detail. The Mars Reconnaissance Orbiter w

发表于:2019-01-07 / 阅读(102) / 评论(0) 分类 2006年VOA标准英语(三月)

Cats And Colors You can look at that quilt your cat is curled up on and see a patchwork of greens, blues, and yellows. Your cat, however, cannot see color variation in the quilt. And here is why. Both humans and cats depend on the back layer of the e

发表于:2019-01-22 / 阅读(47) / 评论(0) 分类 英语时差8,16
学英语单词
abstract of record
acarphobia
alternating
amphigerontia jezoensis
anthranilic
anti-universe
as hungry as a as a hunter
aspirational reference groups
Belatan, Sungai
besel
buy out someone
call ... shot
capsular ligament
climax complex
complimentary copy
Cort.
crime of omission
cryopbile
cyberlife
cystoscrirrhus
devilishly
Diatrypaceae
displacement loop
dodge out of
dominating strategy
Dryopteris oreades
dummy bit
eamon de valeras
Eirod
ejaculatory incompetence
electrical propulsion
electricute
ferrocarbontitanium
fertilent
Francophony
Furol viscosimeter
genstars
Hacienda Carolina
hard cancer
hcoas
institutional forces
kennel accommodation
koselka
kra
lithoed
m. extensor pollicis brevis
margolin
medicalizable
molly
mouthiest
mouthwash
multiplication seasonal factor
newspaper stands
Next Unit of Computing
Nuchar
Nueva Colombia
OMP
otogenic encephalitis
partridgewood
pearly layer
photooscillogram
pollution by organochlorine pesticides
pressor reflex
primatals
pro-West
pseudodipolar scattering
pump inlet head
purge oneself of a charge
pyriform sinuses
Qrejten, il-Ponta tal-
repulped
riemann
rusle
saccharobutyric fermentation
safetied
sanberg
saudi-arabian
scharlow
scotch bonnets
screw-joint coupling
set shot attack
single-layer solenoid
soliton
specified grain
speech level
square box
subject and name-authority file
sum accumulator
ten-day reports
trapezoidal spline broach
triflyl
trustbusting
turn the spotlight on sth
turnip tops
ultra-short wave wireless telephone
uncertain
upgiven
vacuum sealing
voice-excited vocoder
watch ... do
Wiay I.
X-acto knife