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发表于:2019-01-20 / 阅读(211) / 评论(0) 分类 未知分类

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发表于:2019-01-20 / 阅读(129) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. I am Katherine Harmon. It will take just a minute. Jupiter's great red spots, it is one of the most familiar site in our solar system, it is also one of the most mysterious. Because based on most calcul

发表于:2019-01-20 / 阅读(155) / 评论(0) 分类 未知分类

Radiation Might Help Heart Regain its Rhythm That beeping sound is the normal beating of a heart. But here's what the same heart sounds like, during a bout of ventricular tachycardia, or VT the racing beats are caused by an electrical short circuit i

发表于:2019-01-20 / 阅读(187) / 评论(0) 分类 未知分类
学英语单词
acid metalized dye
aircraft tubes
asparagus style pack
asphalt shingle
auto-pilot steering
base mortar
bolthole circle
brush assembly
caere
carbuncle of lower abdomen
carburizations
cargo gear arrangement
carrot-toppeds
classe
collecting channel
combustion knock
comprehensive rationality
cuca
cycloidal wave
diaphragm valve spring seat
disfigurers
dollar cost averaging
double hump
employee's trust
feeman
finishing scouring
flat-top
FLUTD
for God sake
foreign expert
gaumy
generalized deficiency relation
genus Leuciscus
geocentricity
glutinane
good afternoon
granulation polymerization
growth fraction
havell
heat is on
Herbertaceae
hush
inventory pricing
inwit
iodofenphos
kilolitre
krake
laser scattering spectrometer
lend lease agreement
lipoma capsulare
macroscopic symmetry
marcial
Marx regeneration process
MCHG
mean separation distance
mould half
Mynatal
national service
natural fibre core
oileous
output node
oxygen pressure regulator
plast(belar 1928)
plate brass
politive ray
pressure vessel site fabrication
pull one's own weight
puttanas
raiss
recommended daily nutrient allowance
reconstruction of ear with cartilage graft
rectus capitis posterior minor
reset corner
robust design
rontgen rays
rupted
sessile animals
silica tube
skint
soft iron instrument
Spemann's induction
sphenosquamosal suture
sphingolipase
stage management
stick plaster
super minicomputer
tabanus fulvicinctus
tamara karsavinas
task area
textori
togas
tzarevitch
uni-control
vacuum tube microammeter
venae pancreatico-duodenales
vesical calculus
Vincocilina
vitrifiable
viveca
voice logger
whiteheart
worsen