C4二羧酸循环,四碳二羧酸循环

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(245) / 评论(0) 分类 (科普英语)Earth and Sky

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(377) / 评论(0) 分类 (科普英语)Earth and Sky

Fire Cycle 火灾规律 The El Nino phenomenon of 1997-98 unleashed torrential rain in some parts of the world, while creating abnormally dry conditions in others. And it sparked record numbers of wildfires. Learn more about climate and wildfire -- toda

发表于:2019-01-02 / 阅读(368) / 评论(0) 分类 (科普英语)Earth and Sky

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(413) / 评论(0) 分类 知性英语

Covalent bond - a strong bond between atoms formed by sharing outer electrons. When an atom has 8 outer electrons it is stable. Those which naturally have 8, like neon and argon gasses are quite unrea

发表于:2019-01-03 / 阅读(243) / 评论(0) 分类 医务英语

发表于:2019-01-03 / 阅读(173) / 评论(0) 分类 医务英语

cross my heart 感发誓 ; 不骗人 cross the bridge when one comes to it 既来之则安之 cross with, be 不高兴 cry quits 放弃 ; 承认失败 cry wolf 狼来了 ; 发出假警报 cup of tea 喜

发表于:2019-01-03 / 阅读(180) / 评论(0) 分类 英文名句短语

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发表于:2019-01-09 / 阅读(154) / 评论(0) 分类 北京仁爱英语七年级上

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发表于:2019-01-09 / 阅读(147) / 评论(0) 分类 北京仁爱英语七年级上

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发表于:2019-01-09 / 阅读(164) / 评论(0) 分类 北京仁爱英语七年级上

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发表于:2019-01-09 / 阅读(173) / 评论(0) 分类 北京仁爱英语七年级上

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发表于:2019-01-09 / 阅读(179) / 评论(0) 分类 北京仁爱英语七年级上

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发表于:2019-01-09 / 阅读(145) / 评论(0) 分类 北京仁爱英语七年级下

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(319) / 评论(0) 分类 VOA常速英语2007年(十一月)

Join The C4 Show to see what happens when you try to do nice things for total strangers on the streets of Beijing. From singing, to hugging, to shoe cleaning; we help out everyone.

发表于:2019-01-19 / 阅读(177) / 评论(0) 分类 2017CRI中国国际广播电台

Join us for another episode of Travelling with Stu-pid as we fool around in Fuzhou, the capital of Fujian province, situated upon the ancient maritime silk trading route. We explore the nooks and crannies that the town has to offer, and steal a price

发表于:2019-01-19 / 阅读(194) / 评论(0) 分类 2017CRI中国国际广播电台

As we continue our delectable journey sampling chicken dishes during the year of the rooster, join us as we try out some of Xinjiang's most popular dishes, including the aptly named, BIG PLATE CHICKEN.

发表于:2019-01-19 / 阅读(196) / 评论(0) 分类 2017CRI中国国际广播电台

CCIC Finance Limited 中芝兴业财务有限公司 ceding company 分出公司 ceding insurer 分出保险人 ceiling 上限 ceiling price 最高限价 central bank 中央银行 Central Bank Bilatera

发表于:2019-02-01 / 阅读(163) / 评论(0) 分类 财会英语

cloth n.布,衣料 clothe v.(给……)穿衣 clothes n. 衣服 clothing n. 衣服;被褥 club n. 俱乐部,球棒 clue n. 线索,暗示 clumsy a. 笨拙的,手脚不灵活的 同义词:awkward a.笨拙

发表于:2019-02-03 / 阅读(190) / 评论(0) 分类 英文语法词汇

Classical music fans in Beijing are now embracing a massive work-the complete cycle of Beethoven's 9 symphonies with The Deutsche Kammerphilharmonie Bremen. Paavo Jarvi, an internationally famous Estonian conductor, is the artistic director of the or

发表于:2019-02-14 / 阅读(301) / 评论(0) 分类 2017CRI中国国际广播电台
学英语单词
acrotergites
active flank
adiaphoria
agamis
Arsenschwefel
Asturs
augumentation release
azalide
bertholds
bonzoes
brick-lined
brush holder
bulbus terminalis
casero
cursen
cylindrical powder camera
deficiency in weight
dependeth
descendens
design tool
diabetic microaneurysm
Divine Comedy
doxford
economy audit
eleven-dimensional
Fay calliper
floor beam on main girder
forebeam
forevouched
fumart
galactitol
gaseous solution
give two hoots
goal third
guided missile computer
Hampton Springs
healthy development
hi-re
high-frequency impulse
Impendle
indoice
ingrafter
intoplicine
inventory accuracy
is here
job assessment
laurelling
Lennander's operation
leviate
ligated
magnetic tape recorder tape recorder
mcculluch
medical diagnosis on death
metal bel-lows mechanical seal
methyl diphenyl
mikhailichenko
missionary education
molten slag electrolysis refining
organoarsenic
Palffykrater
paregoric compound
part drawing number
perishable freight
peritonitis
phyllospheric microganism
pinion gear shaper
Plasmodroma
power to adjudicate
preheats
preliminary stack section
primary nitro-compound
pulp horn
pulse fuel rod
pulse-limited radar altimeter
quadratic probing
rainfall -temperature relation
reverse current switch
rotor expansion
RST (restart)
sentelle
shifting head
single-band super-heterodyne receiver
single-pass soil stabilizer
software parts-composition system
solitarius
sound-amplification
spotted cranesbill
strike an average
stuff and nonsenses
suny
syndesmochorial
Thalictrum taberiferum
tobasco
Turbinidae
unelected
upcyclin'
vaginectomies
velour(s)
Walden's rule
wonkish
ychanged