生物化学需氧量

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(73) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm

发表于:2019-01-08 / 阅读(54) / 评论(0) 分类 Scientific American(五)月

Grab my hand take one step Come with me no regrets 'Coz we'll fly higher than what you can imagine When your heart is mine, anything can happen You're my baby I know you hear this song No need to worry about us You ain't doing nothing wrong Coz latel

发表于:2019-01-14 / 阅读(52) / 评论(0) 分类 节奏布鲁斯

凭借在iTunes和MySpace的成功,来自美国加州的流行女歌手科尔比凯拉特(Colbie Caillat)的处女专辑《Coco》一经发行便得到了很多歌迷的关注。在美国上市第一周,这张《Coco》共售出5万1千张,在本周的Billboard 200专辑榜中跻身前五名. 在没有与唱片公司签订合约之前

发表于:2019-01-23 / 阅读(157) / 评论(0) 分类 音乐咖啡厅

Twelve million glasses is a lot of glasses. McBurgers is recalling 12 million glasses. The glasses promote the new Shrek movie. The glasses have pictures of the different Shrek characters. They are pretty pictures. But the pictures contain a chemical

发表于:2019-01-30 / 阅读(237) / 评论(0) 分类 原版英语小短文

What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一

发表于:2019-03-09 / 阅读(233) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
A.A.P.S.S.
Ahorizon
airplane-like
antiferromagnetic substance
benzyl isoeugenol
bob hopes
Borj ech Chemâli
Braga, Sonia
brain plasticity
brazen law of wages
buck private
building cost
chlorophytum comosum
chromiphene
controlling stereotype
cranio-facio-plasty
dallaire
dark tourism
dead pick motion
decimal system
default editor
develope
distortion of chart
dneprodzerzhinsks
dry bottom firing system
dynamics of national income
electoral council
elimination of plant disease and pests
environmental assessment of single element
et tu Brute!
fancy price
Farrāsh, Jab.al
fisticuffs
flowing pressure
for your pains
forumite
gatley
genus himantopuses
goddes
group command
guarantor billing hold flag
hemistola kezukai
high effective levelling agent
iipc
improved bound
input output interface
Ivelip
jagg
Japan spice
Jarmen
jobby
Karas Reg.
laplace transform initialization
link saddle pin
literature work
long game
loss in fresh weight of pod
low-voltage generator
manlinesses
metachromism
minor species
mispredicts
missile ballistics
navigation light indicator
Nehru jacket
new grant
non-combustible sulfur
nucleolus (bowman 1840)
oversman
pneumococcuss
prototype logic operation
pushpins
quadrobulary
radiosilicon
reaks
rear stripper beater
remote readout
rotation of bloom
science of lubrication
secondary amine
serve one's turn
shroudage
small faceplate
sound movies
spurn
stend
string-of-beads
telencuron
Todohokke
Topocalma, Pta.
transient heating condition
treatment based on disease differentiation
triethyltin ethoxide
trolley scale
underputting
Uropodina
vibrating-plate viscosimeter
visible absorption spectrometry
weinhardt
whole-stem logging
within ... limits
yvonna