无甾醇原体属

The penguins stay when all other creatures have fled because each guards a treasurea single egg rested on the top of its feet and kept warm beneath the downy bulge of its stomach. There is no food and no water for them. And they will not see the sun

发表于:2018-12-27 / 阅读(45) / 评论(0) 分类 探索与发现2012年

But they are hungry and eager to reach their mother whos delayed feeding them on this special day. Now she lures them with the promise of milk, the only food the cubs have known since they were born, deaf and blind beneath the snow some two months ag

发表于:2019-01-23 / 阅读(47) / 评论(0) 分类 探索与发现2012年

As we travel south, so the suns influence grows stronger. And at 50 degrees of latitude, a radical transformation begins. Summers here are long enough for broadleaf trees to replace conifers. Broadleaves are easier to eat and digest, so now animals c

发表于:2019-01-23 / 阅读(56) / 评论(0) 分类 探索与发现2012年

Deer are frequent casulties of the harsh winter. And these leopards are not above scavenging from a corpse. African leopards could never survive here. But the Russian cats have thick fur to shied them from the cold. There are only 40 Amur leopards le

发表于:2019-01-23 / 阅读(62) / 评论(0) 分类 探索与发现2012年

BEIJING, Dec. 11 (Xinhua) -- China is faced with severe challenges in collecting enough blood plasma to produce medicines, Health Minister Chen Zhu said Sunday. Chen called on the public to join blood donation after donating blood plasma at the Beiji

发表于:2019-02-07 / 阅读(68) / 评论(0) 分类 英语新闻

CHENGDU, May 5 (Xinhua) -- Chinese Health Minister Chen Zhu donated plasma on Saturday in Chengdu, capital of southwest China's Sichuan Province, and called on health workers to take the lead in blood donation to ease the country's blood supply short

发表于:2019-02-18 / 阅读(64) / 评论(0) 分类 英语新闻
学英语单词
actarit
antenicene
antennarius dorehensis
as occasion serves
be central to
be intended for
brace abox
Brachyspirifer
brush handle wire
Centf
clear-air echo
Coal zone
consisted in
convanescible
converting kiln
cover screw
cresol-carboxylic acid
cymbidium virescens lindl. var. sinense nakai
douzepere
ecological crop geography
effect of induced polarization
ends protected only
euprymna morsei
flood-diversion channel
foot kiss
formo-cresol solution
freshel
Geelvink B.
geomarketing
give the green light to
grepping
gukit
Hapsburg jaw
hardin
have much ado
hydrogenases
Ilisya
income statements
Innerste
j. c. maxwells
judeans
kangdong (gangdong)
Lancefield groups
liquidity support
mata-mata
Mavrova
melteigite
metachrome
Metalqui, C.
Methylcoffanolamin
Minkowski method
mitala maria
mortar gun
movement therapy
moving into
muster point
naghdi
new international division of labor
on line input
peaking strip
permanent mould casting machine
Peron, Juan Domingo
plush clearer
Podocarpusfiavone
pottering about
Prantron
primitive state table
put one's own house in order
quality sample
radiographing requirements
reactionisms
reflexive pharyngospasm
Regio infraorbitalis
resonoscope
Rhode Island red
right asoengion
rock-steady structure
sandalwoods
shining willow
shirred
single point linkage
solid state technology
speak with tongues
squamous cell carcinoma of bladder
superassassins
superomedial
taxus cuspidatas
to gape
to serve
tree stump
tysabri
upspringing
veighor
vice inductive to crime
voltage stress protection
VP
water jet jeector
wedging action
wide-bodied
wiles locknut
Xeros
zaccheus