[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
abdominal flesh
Allium pallasii
anti-drying surface
billar jib crane
blue-eyes
boat club
boxty bread
cartographic potential information
Castlemartyr
cell division cycle gene
Cephalotaxus sinensis
Chinese dragons
chinstrap penguins
chlorphenoxamide
Chursinite
cold - blooded animal
Commodity Pool
corrugated roofing
corymbate
cucullo
cundum
dealyd-B
den s of iniquity
dreamwolf
echinulate
electronic counter-counter measure (eccm)
element of transaction
equivalent cutoff wavelength
Eukotourmaline
exclusionist
external shock diffusers
farmstay
fitter's
flights of steps
floodwaters
foreign exchange regulations
fruit hardness tester
functional protoplasm
gauge-matic method
General G(1)Certificate of Education
glomus infundibuliformum
gp18
Ground-weir
handwrit
Hatip
high-oblique photograph
Homalium mollissimum
hyperchromatic karyokinesis
icewines
K-electron capture
Kāsaragod
labial arch appliance
Langue d'oil French
left-handed screw nut
Leibnitz's formula
ligurate
linear variation parameter system
liquid crystal thermometer
MacNeice
magnesioarfvedsonite
magnitude-frequency relation
MaineR.
manual frame
market value adjustment
marsay
mechanokinetics
miscounts
Mitsukuri
musack
nanomoulding
needle sharpener
negativize
nephritic wood
other computer networks
pacaya
papadakiss
parrot toadstool
pay the ultimate price
polyelectron
portal thrombosis
Professional Graphics Display
pulsed dipole
Queanbeyan R.
ride horseback
set down to
severance allowance
software reusability
stiffened expanded metal
stranded
superficial response
superfluities
supra-
Swiss forget-me-not
Taraxacum roseoflavescens
termitids
transformistic
transport layer
ultra-red radiation
uromyces nerviphilus (grognst)hoston
vacancy rates
vertebral spine
zakah