丁酸甲酯

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(127) / 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(178) / 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(190) / 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(159) / 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(199) / 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(185) / 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(214) / 评论(0) 分类 农业与发展

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(185) / 评论(0) 分类 VOA2003(下)-环境与健康

In a Valentine's Day with a difference, residents of the Klong Toey slum near Bangkok's port have come to the aid of the children of Haiti. Volunteers and children from the Duang Prateep Foundation, which works with the community, on Sunday walked th

发表于:2019-01-13 / 阅读(147) / 评论(0) 分类 VOA标准英语2010年(二月)

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(205) / 评论(0) 分类 经济学人科技系列

Something of the salt sea yet lingered in old Bildad's language, heterogeneously mixed with Scriptural and domestic phrases. 比勒达的口音中夹杂着水手腔、家乡土语和《圣经》上的话,显得有几分刺耳。 Avast there, avast

发表于:2019-01-29 / 阅读(194) / 评论(0) 分类 白鲸记

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(205) / 评论(0) 分类 VOA常速英语2013年(十月)

Avast there, avast there, Bildad, avast now spoiling our harpooneer, cried Peleg. 别说啦,别说啦,比勒达,别再糟蹋我们这位标枪手吧,法勒嚷道。 Pious harpooneers never make good voyagers- it takes the shark out of 'em; 虔诚的标

发表于:2019-02-25 / 阅读(153) / 评论(0) 分类 白鲸记
学英语单词
2-furoic acid butyl ester
a twist in one's tongue
AAMSW
aggressive collection
aluminum zinc sulfate
Anredera
arcadio
Ariminum
asearch
asset price bubble
Beijing Geodetic Coordinate System 1954
berkeyite
bibas
bronchial cutting forceps
brown snow
chamecephaly
chego
cloppings
coherent processing system design
college-graduate
complex power
counting-rate meter
cross reference table
crowings
cum new
damncanthal
dead word
default device driver
desmettiana
devers
devil nettles
die-away
diphosphopyridine
dry eye syndrome
electronic analysis apparatus
err on the safe side
escape routes
euterpnosia koshunensis
fibroinflammatory
finish-line
fluvious
geographical information
glory boxes
going belly up
goutwort
greenball
haliotid
high pressure rubber sheet
high pressure tube digester
holocyclic
inner cooling water quality
internal paramera
jaywalker
key industry
lacrimal lithiasis
lawyer bush
lcfu
low-pitched breath-sounds
marlo
massicotites
multiprimitive
neokaolin
neutralisation reaction
nightclub
nondeterministic syntax analyzer
opener link pin
paeonia obovata var. willmottiae (stapf) stern
palaeochannel
point to point control(ptp)
print barrel
red ashes
Red Sea Convergence zone
Reistertown
RF signal generator
right-hand component
rights to participation
rope yards
saproxylophagous
Schreger line
scullions
selfadapting
semi-deserts
silicon monoxide
Sioux Narrows
specklegram
St Brandon Is.
sub-optimality
subgrade in karst zone
surface disturbance
tasselet
telephony using phase modulation
thornlet
three sided file
transfusion
Treas.
tweezered
underfooting
voyage insurance policy
wage curves
wall heater
x ray level
Yalu