显性致死因子

Studies Link Bee Decline to Insecticide Billion-dollar bees Bees pollinate the flowers that become fruits, nuts and vegetables. The work these insects do is worth about $18 billion a year to U.S. farmers. But honeybee colonies in the United States ha

发表于:2018-12-16 / 阅读(32) / 评论(0) 分类 VOA标准英语2012年(三月)

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Farmers fertilize their fields to get the maximum meal from their crops. But the effects of these loads of nitrogen and phosphorous extend beyond the field and past

发表于:2019-01-08 / 阅读(44) / 评论(0) 分类 Scientific American(三)月

Scientists Seek Better Understanding of Threats Faced by Sharks 科学家寻找更好的途径解决鲨鱼面临的威胁 COCONUT ISLAND, HAWAII With many shark species endangered or threatened as a result of pollution and other problems, scientists

发表于:2019-01-14 / 阅读(33) / 评论(0) 分类 VOA标准英语2015年(二月)

By Cindy Saine Washington 16 April 2008 The U.S. Supreme Court has upheld the most common method of lethal injection used for executions by the federal government and 36 states. The unsuccessful constitutional challenge to the three-drug lethal injec

发表于:2019-01-31 / 阅读(39) / 评论(0) 分类 VOA常速英语2008年(四月)

A new report from The World Bank predicts that China's renminbi will join the U.S dollar and the euro as dominant international currencies sometime in the next 10 to 15 years. Some economists say is a major realignment in the global economic order, w

发表于:2019-02-06 / 阅读(39) / 评论(0) 分类 英语新闻

Naw Kham, who was convicted of murdering 13 Chinese sailors on the Mekong River in 2011, was executed earlier this afternoon. The Myanmar drug lord and three of his accomplices, identified as Hsang Kham, Yi Lai,and Zha Xika, were given the lethal inj

发表于:2019-02-14 / 阅读(52) / 评论(0) 分类 英闻天下
学英语单词
adjustable bolt
Al-hakim
arc statndard
as we say
asunderness
auto threading tape
balthazer
battle of Ypres
belly-ache
built-in obsolescence
bulb of fritillary
capetian
catramin
cey
cha shao
chlor(o)-
clan control
cloud top height
coiler roll
cold-running
costal tubercle
Cotoneaster moupinensis
Crassulaceae
daniel chester frenches
dichalkogenides
displode
divider calipers
dot matrix font
echinocactus grusoniis
electrically-alterable memory
external commercial relations
Far Eastern Shipping Company
farinola
fasciculi rectus
Fonurit
food-handlers
foul copy
friction disc type
gamekeeping
green route
gum abscess
half-volleyeds
high pressure tight bearing
hinkling
hornfel
in default
incubuses
instalments
lateral hermaphroditism
leakage insurance
lienomyelogenous leukemia
Limnanthemum S. P.
Lipetsk
macrophoma mame hara
massacres
Meterazine
methyl thiouracil-antimony complex
Methylomonadaceae
milanese chant
missing-person
monocular inclined tube microscope
myospila tenax
naked domain
Nezhinka
nivara
obtusifolias
octachlorohexamolybdenum II tetrachloride
off-colo(u)r
oligoubiquitylation
open armature winding
Pal'yanovo
person connected with a corporation
pine-sap
polo sticks
potassium dioxalate
powered lift
pre-solution
production indicator
progresso
prosphaerosome
prostheca
proximal sedimentary deposit
quality of work life
raven-black
saprophagous
seniority-based
sheep wool
shutter speed dial
skeletalism
slaverings
solid-stage electrolyte gas transducer
Surendran
switch-type voltage regulator
tectonophysicist
Tenosique
Tesalia
tight policy
triticum durums
tup ram
vulcanized rubber insulated cable
wavecom
xanthosine-5'-monophosphate