盐酸地巴唑

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(92) / 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(90) / 评论(0) 分类 探索与发现2012年

Song:Could You Be Loved Artist:Natalie Bassingthwaighte When we touch, does the blood quicken through your veins When we kiss does it feel like you're born again When you hold me darling I don't know if it does If I showed you my heart would you

发表于:2019-01-09 / 阅读(98) / 评论(0) 分类 英语热力歌曲

Song:Not For You Artist:Natalie Bassingthwaighte Knocked down, unappreciated Day is losing grip on the light And everywhere I turn there is night Locked out and confused I waited I saw but never opened my eyes Alone together blinded by lies And I

发表于:2019-01-11 / 阅读(95) / 评论(0) 分类 英语热力歌曲

This is the VOA Special English Economics Report. Today we continue our report on the group of chemical elements known as rare earth metals. These are mined from the earth and used to make technology from mobile phones to missiles. The United States

发表于:2019-01-12 / 阅读(119) / 评论(0) 分类 2010年VOA慢速英语(十)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(109) / 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(104) / 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(91) / 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(97) / 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(110) / 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(89) / 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(82) / 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(202) / 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(88) / 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(117) / 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(82) / 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(94) / 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(100) / 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(83) / 评论(0) 分类 探索与发现2012年

想象一下这样一个国家,女孩需要冒着被杀死的危险,偷偷摸摸的上学。这就是塔利班统治下的阿富汗,而这些威胁延续至今。22岁的 habana Basij-Rasikh 在阿富汗创办了一所学校教育女孩子。她赞

发表于:2019-02-05 / 阅读(163) / 评论(0) 分类 TED公开课:告女性说
学英语单词
abington
acid unconditioned reflex
acrobatic maneuvers
adventitious
amalgams
aphasiac
appetibleness
Asdravirus
ashhole
attach importance
avaliable
bacha
Berēcha
biomass geochemistry
blowout preventer carrier
body building
bushman's poison
cancer diagnostics
Codera, C.
condylomatoid
crush of cases
csas
cumene hydroperoxide
data-processing engineer
DBW (decibels relative to 1 watt)
degeneracy in the simplex
delivery drop speed
discharging valve
distress and safety communications
Duane's clinometer
eisegeses
endo-chordo-mesoblast
erbium (er)
family ornithorhynchidaes
fide jussio
freewheelins
frictional area
gaseous body
gouty diabetes
handling by shipper-self
harness reed
hostelled
hydraulic control unit piping
hydrological frequency analysis
impersonative
in the hot test
Inarijärvi
industrial laws
iqan
Janów
kettlefuls
language lawyer
list of drivers
looked out over
lord provost
low and deep
manilius
mareit
marwat
mcintrye
mesodermal mesenchyme
metallized wood
midmain
miting
mosaddeq
multijurisdictional
neurotrophy
no-hoper
nuclear attraction
one to zero ratio
Orpington
paraaminomethyl benzoic acid
passive indication device
peptases
Percy Bysshe Shelley
perlite deposit
pertinant
planaxis sulcatus
populus tremuloidess
public cheque
radiosonde network
reactance arm
real-time clock word
refund annuity
risk control measure
sea ability
semester hour
Shimo-koshiki-jima
simulation project
smoking test
solid head
spontaneousnesses
striped spermophile
syntheticity
the private sector
tinker
triacetone
triggers off
triisoamylamine
upstream operations
V-V energy transfer
vena cerebri