5-甲基山柰酚

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(64) / 评论(0) 分类 Scientific American(六)月

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(88) / 评论(0) 分类 农业与发展

By Challiss McDonough Cairo 01 June 2006 Police in the Egyptian capital have arrested at least three people who were trying to get to a small symbolic demonstration outside a police station where an a

发表于:2019-01-13 / 阅读(83) / 评论(0) 分类 2006年VOA标准英语(六月)

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(58) / 评论(0) 分类 经济学人科技系列

On the eighth tee, Dannys cell phone rang just as Roy was getting ready to hit the ball. Roy hit another bad shot. He glared at Danny. Danny looked at him again. Im a doctor, Roy. Im on call for emergencies. What if your great granddaughter was in a

发表于:2019-01-27 / 阅读(59) / 评论(0) 分类 365个英语简短小故事

If he says one more thing to me, Im going to hit him, Roy thought. Roy was thinking about Danny, a fellow golfer he had just met today. Danny was a successful orthopedist, 60 years old and quite overweight. Roy was a retired Army officer, 80 and wiry

发表于:2019-01-27 / 阅读(75) / 评论(0) 分类 365个英语简短小故事
学英语单词
.qa
a round sum
adapter card
automatic-answer back unit
bipolaris maydis
bottle stores
brachionus plicatilis
built-in form data item
butteriness
by-pass module
Capas
center of vision
characron
cheiropod
CICP
clear screen
comprehensive trace
Comycin
concealed accounts
coreoplasty
decyphers
demand and average revenue
develop a habit
differential earning
dincote
direct scan
drapetis calcarifera
electron-pair bond
estral
export rate of exchange
extragenic mutation
face-change character
Ferroids
focal image
frederiksborg
gastrica tetania
genial angle
gigantor
heineman
hideousship
historiola
hypophyseal curet
i.c.e.l
Ihlienworth
inebriants
international phototelegraph position
kola tannin
Lavardac
leather star
leptocephalus stage
lift check valve
loading machines
Matun
medullary rays of kidney
merchandise inventory initial
meropelagic
minitrials
multiterm
naphthalene disulfonic acid
nautical twilight
neutron-rich side
non violent
octaheadral layer
olive-like
Paphiopedilum charlesworthii
pars fornicata pallii
petunin
philonotis roylei
plastic heat shield
pornophobic
Powder River Basin
quill-type drilling unit
real-time digital spectrum analyzer
recessed rock anchor
regular coursed rubble
requisitionally
respondence
RICC
rock metal
rough bindweeds
salaried employee
shruggings
simulated management operation
slagging of sand
snapring
spoilage account
stallinger
stammrel
submerged lubrication
swods
Tai Long
tear resistance tester
transparent dielectric layer
tungsten-copper-nickel composition
turkanas
u. s. army special forcess
unequal impulse
unpristine
vesicoclysis
von Sternberg, Josef/Joseph
water transportation research institute
zhores