头孢氧羟唑

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(147) / 评论(0) 分类 探索与发现2012年

Module 2 Me,my family and friends [00:06.77]模块 2 我,我的家庭和朋友 [00:09.95]Unit 1 A new classmate [00:13.18]单元一 一位新的同班同学 [00:16.40]Say and act [00:18.47]说并且行动 [00:20.53]We have a new classmate.Hi,I'm Ch

发表于:2018-12-13 / 阅读(306) / 评论(0) 分类 沪教版牛津小学英语四年级

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(151) / 评论(0) 分类 探索与发现2012年

An ass and an ox,fastened to the same yoke,were draging a waggon.While the ox was pulling with all his might he he broke a horn.The ass swore that he had got no help whatever from his weak companion.Exerting himself in the labour,the ox b

发表于:2019-01-09 / 阅读(253) / 评论(0) 分类 趣味英语

Words and Their Stories: Ace in the Hole Now, WORDS AND THEIR STORIES, a program in Special English by the Voice of America. 现在是美国之音慢速英语词汇典故节目。 It is surprising how many expressions that Americans use every day cam

发表于:2019-01-12 / 阅读(240) / 评论(0) 分类 2012年VOA慢速英语(八)月

Food shortages are looming in Kenya as last season's lighter-than-normal rains begin to affect harvests in the arid north. As Kenya begins its annual dry season, there are mounting fears of crop failure and a shortages of food for residents in the dr

发表于:2019-01-14 / 阅读(194) / 评论(0) 分类 VOA标准英语2011年(一月)

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(169) / 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(175) / 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(152) / 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(153) / 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(172) / 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(160) / 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(144) / 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(170) / 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(184) / 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(161) / 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(169) / 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(179) / 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(148) / 评论(0) 分类 探索与发现2012年

1) head to head / toe to toe 直面对战 2) face to face 面对面 3) see eye to eye 意见相同

发表于:2019-02-03 / 阅读(192) / 评论(0) 分类 OMG美语
学英语单词
aberred
aeroradiometric survey
alternate key stroke
Astanga yoga
aurous
autotelephone system
base load boiler
be on the square
be reduced to beggary
biblists
brake shoe gauge
bronze-red
cannelured
carret
cd writer/burner
close the door upon
coaxial-line frequency meter
compiler default condition
conchectomy
constant sum game
counterfeiting currency
crossed cylinder
cylinder sleeve puller
dabuyin pill
El Vallecillo
emissions
endolymphatic space
FastDisk
frame-mounted motor
fresh water freeboard
frost heaving force
genus papriluss
ground stake
hai
hartsfield-jackson
heart muscle
hellier
high temperature side
hold down rollers
hydrostatic fish tag
hygrohypnum montanum (wils)broth
hypothec bank
immuneron
incurrent
Joe Schmo
Josephinism
karyokinetic division
klesaris
kratzer
KRE
lairless
Ligamentum transversum scapulae inferius
logorrh(o)eic
macrocythaemia
master-level
medium range economic outlook
metering section
molecular magnets
non-orthogonal data
off-hire clause
Ophemert
osmometers
pancreat-
parapinopsin
Parasenecio tripteris
pettishly
physical evaporation
poroconidia
postmetamorphic deformation
power line carrier telephone terminal
pressure-feed gasoline
projectivity
Raspberry Pi
recovery fate
rejection of abandonment
repair according to condition
request
residual supply index
retemper
rhegmatocyte
Schwaben
shaft type sinter cooler
sheet cavity
skewse
spilt the beans
spooler output task group
superwide array
Syzygium szemaoense
tackroom
Tartuffian
tire-woman
Tower Junction
trialless
Tsuchiya's test
type synthesis
UK marginal tax rate
unjustifiable deviation
unmuzzle
wind-stone
work schedule
world oceanographic data display
ybite