端口扫描

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(42) / 评论(0) 分类 探索与发现2012年

Azaz Residents Pick Up After Aerial Bombings The residents of Azaz clean up and mourn after Wednesday's deadly bombing by Syrian government warplanes. Azaz had been peaceful in recent months, although forces of the rebel Free Syrian Army have had to

发表于:2019-01-13 / 阅读(70) / 评论(0) 分类 VOA标准英语2012年(八月)

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(45) / 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(52) / 评论(0) 分类 探索与发现2012年

The advance of the seasons brings constant change. As the suns influence diminishes in the north, so the deciduous forests of America begin to shut down, losing their leaves in preparation for the dark, cold months ahead. One season hands over to ano

发表于:2019-01-23 / 阅读(37) / 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(60) / 评论(0) 分类 探索与发现2012年
学英语单词
2-methylvaleric acid
abatage
al hisi
All Told Measurement
Aptian Age
asvat
autocatalytic action
automated tellers
automatic Sprengel pump
autosyn signal data
axial labyrinth seal
be a martyr to
be on the ball
binding on all parties
black shale
brilliant varnish
brittle ferns
Camoquini
chamber concerto
cold occlusion depression
common zero point
congestion window
conversation chair
counter current heat exchange
crib-biting
crossbeaks
Decussocarpus nagi
dick heads
dressing by floatation
dryasdusts
dynamic characteristic test for generator set
dynamic chemorheology
Einstein-Smoluchowski theory
embryonic plant
engineering structures
epidemic diseases
Esbericard
ethyl diiodobrassidate
field pipeline
fork ladle
fully-integrateds
furnish sb with sth
gainlessness
gear pair with negative modified centre distance
gender-bias
genus Cercospora
green cover percentage
growner
Gruesa, I.
halo glaucomatosus
hambeast
heat flow transducer
heat of mixing
hexaammine nickel chloride
high-tech
hit tests
hot magnetron
hydraulicbrake
hypergene structure
in another
indices of lattice row
inter-company expenses
Itajubaquara
khalfan
linear antenna array
m-phenetidine
matching circuit
ministrants
Morgagni's crypt
Naru-shima
out-performance
P. R. C.
paringauxes
phenpleqhrine
phenylbenzoic acid
poterium sanguisorbas
pre-synaptic potential
precystic stage
prefrontals
premium statement
profaning
pulse voltage
Rankine temperature scale
rapd
rare earth screen
rationalizer
reflective surplus value
regulator subunit
rescue cutter
satf
separate trial
Sheberghān
shell type servo motor
skriking
slave dial
Sweetwater Res.
synchronizing network
thermal insert
train loader
unflappabilities
Wu Zhen
zirconium carbide ceramics