[机] 苯并咪唑

A hundred years ago, there are one and a half billion people on earth. Now, over six billion crowd our fragile planet. But even so, there are still places barely touched by humanity. This series will take you to the last wildernesses and show you the

发表于:2018-12-03 / 阅读(99) / 评论(0) 分类 探索与发现2012年

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(97) / 评论(0) 分类 探索与发现2012年

迈克尔.杰克逊:ben Ben Ben, the two of us need look no more We both found what we were looking for With a friend to call my own I'll never be alone And you my friend will see You've got a friend in me Ben, you're always running here and there

发表于:2019-01-03 / 阅读(207) / 评论(0) 分类 迈克尔杰克逊经典歌曲

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(133) / 评论(0) 分类 VOA标准英语2012年(八月)

They are constantly on the move. New-born calves have to be up and running the day they are born. But the vast herds do not travel alone. Wolves. Packs of them, eight to ten strong, shadow the migration. And they are hungry. Its the newly born calves

发表于:2019-01-23 / 阅读(117) / 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(112) / 评论(0) 分类 探索与发现2012年

Day 10. And the mother has let her cubs a mile from the den. Its time to put them to the test. Theyve grown enormously in confidence, but they dont have their mothers sense of urgency. At last it seems that they are ready for their journey. And they

发表于:2019-01-23 / 阅读(100) / 评论(0) 分类 探索与发现2012年

Midsummer on the tundra and the sun does not set. At these altitudes, the suns rays are glancing and not enough of their energy reaches the ground to enable trees to grow. Youll need to travel five hundred miles south from here before that is possibl

发表于:2019-01-23 / 阅读(106) / 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(118) / 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(98) / 评论(0) 分类 探索与发现2012年

The character of the forest changes as we descend, becoming ever darker and damper, favoring different kinds of animals and plants. Less than two percent of the sunlight reaches the floor. But even here there is extraordinary variety. In the Great Is

发表于:2019-01-23 / 阅读(89) / 评论(0) 分类 探索与发现2012年

The female retires to consider her verdict. Its hard not to feel deflated when even your best isnt good enough. The sun influences the lives in the ocean just as it does on land. Its richest parts are those where waves and currents bring fertilizing

发表于:2019-01-23 / 阅读(126) / 评论(0) 分类 探索与发现2012年

The strike of a great white shark lasts a mere second. Slowing it down forty times reveals the technique and immense strength of this massive predator. If surprise fails, there will be a chase. The shark is faster on a straight course, but it cant tu

发表于:2019-01-23 / 阅读(214) / 评论(0) 分类 探索与发现2012年

The sun beating down on tropical waters powers the weather systems of the globe. Moisture evaporates from the warming ocean and rises to create great storms. The winds generated out at sea sweep inland across the continents. As they travel across the

发表于:2019-01-23 / 阅读(98) / 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(127) / 评论(0) 分类 探索与发现2012年

Their secret is teamwork. Impala are their favourite prey. They start to hunt and the pack splits up. An aerial viewpoint gives a new insight into their strategy. As the dogs approach their prey, they peel off to take up separate positions around the

发表于:2019-01-23 / 阅读(90) / 评论(0) 分类 探索与发现2012年

The dogs know their prey must come out or drown. Now its a waiting game. The rest of the pack are calling. Theyve made a kill in the forest and this is an invitation to join in the meal. The impala is in luck. A pack this size kills once a day and ev

发表于:2019-01-23 / 阅读(108) / 评论(0) 分类 探索与发现2012年

All across southern Africa, all animals are journeying for the same reason. Buffalo join the great track. Nowhere else on Earth are so many animals on the move for the same urgent purpose. They are all heading for the swamps of the Okavango, a vast i

发表于:2019-01-23 / 阅读(109) / 评论(0) 分类 探索与发现2012年

At the peak of the dry season in the Kalahari, water arrives in the Okavango. It fell as rain a thousand miles away in the highlands of Angola and has taken nearly five months to reach here. The water drives out insects from the parched ground which

发表于:2019-01-23 / 阅读(90) / 评论(0) 分类 探索与发现2012年

benison,n 赐福;祝福=blessing 【记】ben笨,son儿子。笨儿子。有个笨儿子可不是坏事,那是福气。比如,你的儿子要是阿甘(亿万富翁),你就不用出国了,等着在家享福吧

发表于:2019-01-25 / 阅读(182) / 评论(0) 分类 不择手段背单词
学英语单词
assentings
Avallon
axial inductively coupled plasma
basement fold
basreliefs
Batalha
blasting test
cage and needle roller assembly
cavitation hysteresis
chlorophorus yayeyamensis
churn drill
complementary bipolar ic
countersubject
d-n-a
decicco
definitely
depeinct
determination of flash point
diddle-daddling
Diels-Alder reaction
dispatch discharging only
distance of distinct vision
Dos Picos
drum stumper
duracine
embraced
end shackle
envisagements
equilibrium dose constant
exspuition
fiber to the home
folding scale
fuzzy prototype
genus Casuarina
gilled-cooler
hence-forthward
high strength welded pipe
horospheres
ice-cream social
idlings
immune deficiency syndrome
ina
infrared absorption band
intrahyoid
jumping
lagoonlet
lance sergeant
lateral penellipse
lead basin
loading mode
localizer (loc)
macro-dispersion
Maišiagala
making happy
mechanical refining process
mental dificiency
mesoblastic band
methane blower
millicrosecond
mistrusting
mother setons
naphtha insolubles
nickel-palladium arsenide
nuclear bohr magneton
orders of saint benedict
peace campaigner
pedophiliacs
penched
petty cash account
Phyllostachys aureosulcata
pin-board programming
Pittosporum perglabratum
poliomyelitis
problematicss
propagation angle
propenol
quicldy
RDS.A
red bay
refined sugar
refr.
regular barge service
run rings round sb
salkevers
scopeless
semisonic
serpyllin
solar orientation
soracco
stern rudder
stretching straightener
sweetness
synchrospeed
Syrrhaptes
taken a chill pill
veins of penis
vision switching matrix
ward maid
wharfie
wing-body interference
wirs
yask