[化] N-(1,2-二苯基乙基)烟酰胺

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(198) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(152) / 评论(0) 分类 VOA双语新闻 2014年1月

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(158) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(127) / 评论(0) 分类 白领英语晨读

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(148) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(165) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(168) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(186) / 评论(0) 分类 TED演讲教育篇
学英语单词
a DW
aficio
allhallowtides
antirevolutionaries
antiservice
arborize
ARRIPIDAE
atria of lungs
Better wear out than rust out.
boat neck,boat neckline
brainboxes
Bruck an der Leitha
burglariously
Capparales
chattel corporeal
Christopher Lee
Christopher's spots
chromosomal chimaera
Chumek
coastal species
contractus bonae fidei
cortinarius sodagnitus
daguerrotypy
Deutzia zhongdianensis
dialectics of thinking
dry type rectifier
earth-heart
fire spreading
fishing robot
germinates
Gurktal
heaven and humankind are mutually responsive
hyaloid capsule
hydragogue purgative
hypobilirubinemia
i-thee
inconnues
infrared angle tracker
keasey
knot type
lead-lag module
Leidig's cell
lex solutionis
marine alga
maternal instinct
mazurkalike
methyl acetyl carbinol
Moggio Udinese
Monte Moro, P.di
multicircuit winding
Nampula, Prov.
neckwear
neritic region
nitroundecane
non-mse distortion measure
norpramin
nunciative
out-blowed
outsiderishness
ownche
papulovesicular pityriasis
petromyzontidaes
phenyl-magnesium-bromide
photosynthetic ratio
picked off
pocket pool
polybasites
prefacive
profile matrix
prunus apetala franch.et sav.
pseudodemocracies
purple heron
reach the finals
regression dependence
remote-controlled mine
rerun still
scumball
sea-line
segmentectomy
shovel type excavator
shuffle
single-pass prism instrument
soluble polymer
spectrum renormalization
stand bar
summercaterss
sweep adjustment
talus deposit
technical force
the twilight saga
thering
transform into
treasury currency outstanding
universitys
upgather
upsa-tree
velocity attitude
ventosa
visible range
ware room
WiBro
Zarya, Proliv