烟酸甲酯

Over 2 years of study, Randolf has shown that these doses neonicotinoids do affect bees' higher cognitive processes, especially their memory of the landscape around them.-We tested about 200 bees, both controlled bees and pestcide-treated bees, and w

发表于:2018-12-03 / 阅读(135) / 评论(0) 分类 探索与发现2013年

-There are at least pieces of evidence which show really serious impacts from levels of neonicotinoids that bees, wild bees could be exposed to in wild environment.And the arguement against the ban was laid out by one of the pesticide manufacturers.

发表于:2018-12-03 / 阅读(148) / 评论(0) 分类 探索与发现2013年

Study: Insecticide Is Killing Wild Bees 研究发现杀虫剂杀死野生蜜蜂 A new study says a widely-used insecticide is damaging wild bee populations. Wild bees are important, because they pollinate crops and wild plants. Environmentalists in t

发表于:2018-12-16 / 阅读(93) / 评论(0) 分类 2015年VOA慢速英语(五)月

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(106) / 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(158) / 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(156) / 评论(0) 分类 Scientific American(三)月

Lin has recently become R* spokesperson in the neonicotinoid debate.-The big advantage of neonicotinoids is that you can plant the seed already treated. It means the farmer doesn't have to spray. If you've got to spray, it's very expensive. It's got

发表于:2018-12-27 / 阅读(102) / 评论(0) 分类 探索与发现2014年

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(123) / 评论(0) 分类 初学者听力文摘精选

Todd: OK, Jessica, we are going to talk about cooking. Jessica: OK. Todd: Now, you like to cook! Jessica: Yes. Todd: OK. What can you cook? Jessica: I can cook Manicotti, Tacos, lots of food. Todd: OK. So what is Manicotti? Jessica: Manicotti is...it

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 英语访谈对话

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(178) / 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(161) / 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(193) / 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(157) / 评论(0) 分类 VOA2003(下)-环境与健康

Todd: OK, Jessica, we are going to talk about cooking. 杰西卡,我们来谈一谈做饭。 Jessica: OK. 好的。 Todd: Now, you like to cook! 你喜欢做饭! Jessica: Yes. 是的。 Todd: OK. What can you cook? 你会做什么? Jessica: I c

发表于:2019-01-15 / 阅读(106) / 评论(0) 分类 实战口语情景对话

Todd: OK, Jessica, we are going to talk about cooking. Jessica: OK. Todd: Now, you like to cook! Jessica: Yes. Todd: OK. What can you cook? Jessica: I can cook manicotti, tacos, lots of food. Todd: OK. So what is manicotti? Jessica: Manicotti is...it

发表于:2019-01-20 / 阅读(137) / 评论(0) 分类 原版英语对话1000个

Todd: OK, Jessica, we are going to talk about cooking. Jessica: OK. Todd: Now, you like to cook! Jessica: Yes. Todd: OK. What can you cook? Jessica: I can cook Manicotti, Tacos, lots of food. Todd: OK. So what is Manicotti? Jessica: Manicotti is...it

发表于:2019-01-25 / 阅读(113) / 评论(0) 分类 英语趣味课堂

Tender Is the Night - Book Two by F. Scott Fitzgerald Chapter 21 Rosemary had another dinner date, a birthday party for a member of the company. Dick ran into Collis Clay in the lobby, but he wanted to dine alone, and pretended an engagement at the E

发表于:2019-01-26 / 阅读(131) / 评论(0) 分类 有声英语文学名著

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(184) / 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(171) / 评论(0) 分类 VOA常速英语2013年(十月)

Todd: OK, Jessica, we are going to talk about cooking. Jessica: OK. Todd: Now, you like to cook! Jessica: Yes. Todd: OK. What can you cook? Jessica: I can cook Manicotti, Tacos, lots of food. Todd: OK. So what is Manicotti? Jessica: Manicotti is...it

发表于:2019-02-27 / 阅读(173) / 评论(0) 分类 英语口语练习册
学英语单词
Adenolobus
adjustment for angle of inclination
admantine spar
alexofixin
asinines
astronomic(al) satation
atomic(al)
auripigment
body clock
bran separating screen
buy clothes off the peg
Cannon Falls
carnifying
celer
Central African Republic franc
charged particle X-ray fluorescence analysis
compacting process
coprecipitate
crossness
dubbed
dynamics of orbits
earthquest
farm population
farm property
fast refractive infrared optical system
flash-over voltage
gear shift mechanism
glassfiber composite
gnb
half-yearly premium
haptic feedback
herba dendrobii
herdsboy
horrend
hydrogen molecule
inconsumable
indecently
internal impeller pump
isocline
ivory-white
jump one's bail
Kapambwe
lay an enchantment on
lipopolysaccharide
lit.
load-factor design
luminous flux
lute a mold
Macfarlane
manganese(ii) phosphite
manoeuvering valve
marriage-bed
Merdoch
mesh of trees
missile site radar (msr)
molecular aggregate
Monsempron-Libos
narrative schema
neoprene joint packing
Nervilia
non-reflective material
open type single action crank press
optical spectral attenuation
orams
orthography
oxygen depolarization
pairforming
partial excision of mammary duct
pastel shades
performance monitoring program
phenomena of peripheral dissociation
phoenicopterus
platydactyl
Poitou-Charente
population bottleneck
reactor startup vibration
rebuss
reveles
rocker arm plunger
Rollesby
Routt County
sapient
scapulopexy
scholars
segmented mode
self-blaming
semiempirical model
sidled
silver-ware
smash-up
snap sb's nose off
spitefull
stony coral
strainless
takes something out
time element control
tinfoiler
touch net
Truxaletten
unwanted emission
urinologies
VLSI (very large scale integration)