N-乙醯咔唑

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(76) / 评论(0) 分类 探索与发现2012年

A Abrine 相思豆碱 O-Acetyl-3,6-di-O-β-D-xylopy-rano- astragaloside O-乙烯 3,6-双氧-β-D- 吡喃木糖基绵毛黄芪甙 Acetylastragaloside 乙酰黄芪甙 N-Acetyl-D-Glucosamine N-乙酰氨基

发表于:2018-12-08 / 阅读(95) / 评论(0) 分类 医务英语

SARAH MCCAMMON, HOST: The indie rock band Pedro the Lion is known for its sometimes dreary lyrics that take on internal conflict often filled with religious angst. (SOUNDBITE OF SONG, THE FLEECING) PEDRO THE LION: (Singing) Who shall I blame for this

发表于:2018-12-17 / 阅读(81) / 评论(0) 分类 2018年NPR美国国家公共电台2月

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(78) / 评论(0) 分类 探索与发现2012年

Hey 嘿 Beautiful, beautiful, beautiful, beautiful angel 美丽动人优雅纯洁的天使 Love your imperfections, every angle 连你每个不完美的角度都喜欢 Tomorrow comes and goes before you know 时光飞逝你不曾知晓 So I just had

发表于:2019-01-03 / 阅读(89) / 评论(0) 分类 听歌学英语

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(88) / 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(91) / 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(78) / 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(79) / 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(98) / 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(74) / 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(68) / 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(71) / 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(102) / 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(65) / 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(75) / 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(78) / 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(68) / 评论(0) 分类 探索与发现2012年

中草药成分英语单词 A Abrine 相思豆碱 O-Acetyl-3,6-di-O--D-xylopy-rano- astragaloside O-乙烯 3,6-双氧--D- 吡喃木糖基绵毛黄芪甙 Acetylastragaloside 乙酰黄芪甙 N-Acetyl-D-Glucosamine N-乙酰氨基葡萄糖糖 6``-acetylhyperoside 6``-乙酰氧基金丝桃甙 Acetylsh

发表于:2019-02-02 / 阅读(129) / 评论(0) 分类 英文语法词汇

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(113) / 评论(0) 分类 英文语法词汇
学英语单词
acre-foot
Act to Regulate Commerce
adnexa uteri
american foreign policy
answering flag
antisolar
averaging method
axially asymmetric flow
axiom
baby momma
bacteria-proof filter
bio-bio
bioinstrument
broken section
bryoxiphium norvegicum japonicum
bunny
cast reproaches on someone
charges on purchased merchandise
chemically softened rubber
Chittur
chopline
complex beam parameter
computes
content syndication
decorate the house
derris canarensis
distance survey
dom.
drawing time
Dujarric
electron-beam drilling
Eskabarb
fibratus
financial time stock indices
fire goods
fore-oath
foreign workers statistics
full scale
gas analyzing
geographias
Go Dau
heavy bead
heptafluorobutyric acid
hesperidess
incompatible
individual items
inertia parameter
lens grinding
low sundays
low-frequency transistor
map measure
matters of opinion
mechanical soil cultivation
mechanical switching
moude
musical-chairs
Na-ion exchanger
Natrapel
NMP22
nonferrous metal waste water
nuclear-powered ballistic missile submarine
oil cylinder of shutter
oil dehydrating plant
onychosis
ornl
overflowings
P. T. O.
paratyphoid
perforated interval
phthisiologia
proctisone
puts the case in another way
roaring business
sandwich coil
sangxing decoction
SCKR
self-starter pinion
semibridging carbonyl
skipful
smoke box superheater
socketless
st john chrysostom
stack nozzle
standard plain milling cutter
stop at
stopline marking
streams of blood
swaddling bandss
tainted blood
Talmid Chacham
teletype system
through weld
tivadar
Tutuwawang
undergoe
Ungnadia
viscero-
wage dividend
wheel-type rake
Wikiquote
zinc-silver accumulator
Ziziphora pamiroalaica