音标:[,mɛθɪl'bɛn'zin] ;
n. [有化] 甲苯(染料或火药的原料)

AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n

发表于:2018-12-16 / 阅读(345) / 评论(0) 分类 2016年VOA慢速英语(十)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(397) / 评论(0) 分类 Scientific American(六)月

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(388) / 评论(0) 分类 Scientific American(三)月

You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t

发表于:2018-12-28 / 阅读(360) / 评论(0) 分类 初学者听力文摘精选

Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented

发表于:2019-01-02 / 阅读(377) / 评论(0) 分类 60秒科学

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(415) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(423) / 评论(0) 分类 农业与发展

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(360) / 评论(0) 分类 Scientific American(八)月

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(414) / 评论(0) 分类 VOA2003(下)-环境与健康

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(432) / 评论(0) 分类 经济学人科技系列

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(463) / 评论(0) 分类 VOA常速英语2013年(十月)

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(381) / 评论(0) 分类 阅读空间

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(350) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
0871
a strake
abread
aichi
antiaggregatory
anticircus
argentine wool
austrian oak
bid-up
binary eutectic
bioweathering
cautional
clotting enyme
coistrels
commodity-by-commodity approach
community resource
concave reflection grating
corpgeeks
crotylation
denuclearized
differential of a controller
dumb gulper shark
dye-back film
ecopornography
electrolytic surge-arrester
electron-lucent
Evrou, Nomos
exp function
false conflict
filmastrip
fitting union
four-order sphenoid
frequency standard
galathea albatrossae
going-concern enterprise
golyadkins
gubenkoes
guerrero
Heller's plexus
hologram pattern
hour mechanism support
house keeping money
humidity field
hypermetrical
inland telegraph
instructional dialogue
isolation network
isostructrualism
knifing pass
lactation factor
laser induced damage
launch vehicle coordinate
linear type
long summer
longitudinal magnetizing ampere turn
main repeater section
masailand
maximal length
methylcobalamin
Micropygidae
Mikhmoret
motor-generator arc welder
n.o.
Narbonne-Plage
negative convergence
Nikon chorus
NMR spectrum
non bank
nonbinary code
nonsingular perturbation
numeric word
organogeny
ostertagias
Paget-Schotter's syndrome
Parulidea
pathological condition reflex
phase of network functions
philed
plastic coating
plowing toward center
population irruption
provision for possible loan loss
redundant constraint
residual air volume
rusty spot
Salmonella bredeney
sanhuang plaster
scribblatory
seed sorting
shafts
shunted capacitor motor
silo-filler's disease
spotted cucumber beetle
stepback
stick by your guns
taffias
tidal zone biology
transmitted information transmitter data
treaty Indian
vismodegib
waste disposal in the sea
Wind R.