羊膜嵴椎动物

Fish Use Whole Bodies When They Eat Fish are animals that live in the water. They are also vertebrates animals that have a backbone and a spine. They have gills that permit them to take oxygen from the water. But have you ever wondered how vertebrate

发表于:2019-01-12 / 阅读(134) / 评论(0) 分类 2015年VOA慢速英语(七)月

Acanthostega 这种生物已经演化出前后肢,但每肢都有8趾。这种生物是从鱼类进化到两栖类的过渡产物。而且,它具有更多的鱼类特征,如有鳃、鳍和只能在水中起作用的感官。伦敦自然历史博

发表于:2019-02-24 / 阅读(148) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
amplitude-phase representation
antibusers
arabesqueness
autoconfirmations
basic status
be on the wagon
beam collapse mechanism
brass-plate
Brewster angle window
broggerite
building block concept
Bultmann
center circle of gear pins
change-church
chisel edge angle
Comporta
corpman
cortical activity
cost of protection
culex (eumelanomyia) foliatus
decresse
diasarone
diencephalic
diolic acid
disorganises
dual A-V nodal pathways
ecological condition
Ecolyte
Edinburgh Duke of
Eichenzell
end measuring gauge
flat needle-bar type
full price
furnace entry table
Ganglion vertebrale
Golding
Gornja Radgona
great western larch
happier
hero of the spigot
hydroxypropylidene
in-service examination
isothermal process
Longmorn
look sth out
lulah
Madre, R.
mass-synchrometer
Matumbi
maximum load of the testing machine
mellow consistency
miter wheel gear
mostel
non-professionals
npu
oceanic moderate
Odernheim am Glan
of price
one-lunger
oraculousness
Portuguese cypress
power splitting
printing industry
rascal
revised program
riveted cannon second hand
saltpeters
Schafflund
self-criticisms
seven
shrivastava
single loop controller
singular cover
sodium cetyl alcohol sulfate
sonora
standby lamp
stars-of-Bethlehem
sternocleidomastoids
stole fee
strychnine
sub-zero treatment device
table crosswise movement
tablers
Tall Rif'at
tawil
telecom
time reference navigation
tipasas
tragicomical
transverse pitch limit deviation
trick work
uneconomical
untrackably
upward adjustment
vehicle insurance
water interception cover
waterboardings
Wittgenstein, Ludwig
wolfits
writher
yuji
Zittmann's decoction