[化] 丙烯醛二聚物

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(182) / 评论(0) 分类 探索与发现2012年

Ann Landers Gave Advice to Newspaper Readers Across AmericaWritten by Caty Weaver (THEME) VOICE ONE: Im Mary Tillotson. VOICE TWO: And Im Steve Ember with the VOA Special English program PEOPLE IN AMERICA. Today, we tell about advice writer Ann Lande

发表于:2019-01-02 / 阅读(257) / 评论(0) 分类 名人轶事

英文歌词: It's true, we're all a little insane But it's so clear Now that I'm unchained Fear is only in our minds Taking over all the time Fear is only in our minds but its taking over all the time You poor sweet innocent thing Dry your eyes and te

发表于:2019-01-10 / 阅读(207) / 评论(0) 分类 英文摇滚歌曲

This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 A ten-billion-dollar deal aims to create the world's largest exchange company. The plan would combine the operators of the New York Stock Exchange and

发表于:2019-01-11 / 阅读(242) / 评论(0) 分类 2011年VOA慢速英语(二)月

THIS IS AMERICA - Fathers Who Cook; Food Trucks Roll Across America FRITZI BODENHEIMER: Welcome to THIS IS AMERICA in VOA Special English. Im Fritzi Bodenheimer. MARIO RITTER: And Im Mario Ritter. This week on our program, we hear about fathers who c

发表于:2019-01-12 / 阅读(265) / 评论(0) 分类 2011年VOA慢速英语(八)月

The mass killing of Armenians by Ottoman Turks beginning in 1915 remains an emotional issue. A major U.S. congressional panel has described the massacre as genocide. In this report from Washington, Senior Correspondent Andr de Nesnera looks at the ra

发表于:2019-01-13 / 阅读(209) / 评论(0) 分类 VOA标准英语2010年(三月)

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(206) / 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(182) / 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(177) / 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(202) / 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(187) / 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(167) / 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(201) / 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(213) / 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(189) / 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(197) / 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(208) / 评论(0) 分类 探索与发现2012年

HEALTH REPORT -July 10, 2002: Acrylamide in Fried Foods By Nancy Steinbach This is the VOA Special English Health Report. Twenty-three international health experts say they are concerned about the pos

发表于:2019-01-30 / 阅读(224) / 评论(0) 分类 健康与环境

By Naomi Schwarz Dakar 21 February 2008 The United Nations Mission in Congo says it has evidence rebels killed around 30 civilians in eastern Congo in an incident in mid-January. The region, a long-standing site of instability in Congo, was then in t

发表于:2019-01-31 / 阅读(190) / 评论(0) 分类 VOA常速英语2008年(二月)

By Margaret Besheer Washington 05 April 2006 Before the 9/11 terrorist attacks on the United States, the public had access to declassified documents concerning U.S. policy that were housed in the Nati

发表于:2019-02-03 / 阅读(273) / 评论(0) 分类 2006年VOA标准英语(四月)
学英语单词
abadinsky
absolute boiling point
abutting plates
androcidal
Angarka
Camellia lucidissima
cerebelli posterior incisurae
channel pool
chin wags
colla taurina
construction of vagina by skin flap grafting
cyctic
Deborzyczka
dextron
diagynic
dibal
duodenal cocxcidiosis
Dzhalir
eaise
empairment
export retention quota
ezzies
fauve
ferrialunogen(tecticite)
financial constraints
flat CRTs
flour alumina
Floxapril
gear marking compound
genus Dasyprocta
glynns
goats hair
goods exchanging trade
gweducs
hatboro
hearing protection
heterogeneous network
high-melting-point asphalt
Ilex sinica
immediate transportation entry
integrated campaign
interfacial free energy
intracochlear direct current potential
intravenous injections
iritic
iron binding globulin
Kilwa Kisiwani
laghman (mehtar lam)
laprafylline
lines of inquiry
lundum (portugal)
marle
Martin's flask
Mata de Alcantara
meruloes
monometallic
Monségur
most significant address bit
mudpan
nickelmagnetite
nvh
panel partition
pharyngosuprabranchial
planting in rows
pyramica hexamerus
quantum jumps
quots.
real storages
riday
rinse thoroughly
rivet
root in
round the back
saturation humidity
screwed nipple
sdsustsys-s
seated L-square
sebiri
side lever press
signed receipt
sine voltage
slam on
Sodomitish
sous
special place
stopping-places
Tarfside
teddy-boy
tidewater streams
timber-trade
Time has wings
to someone's disadvantage
transcutaneous electric nerve stimu-lation
tuning frequency
utriculus masculinus
vapour-dividing head
warm descriptions
washer dryer
weak maximum principle
wined and dined
wire mesh pallet
X-Prep