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(164) / 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(169) / 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(120) / 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(151) / 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(188) / 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(197) / 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(135) / 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(168) / 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(128) / 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(207) / 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(194) / 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(224) / 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(200) / 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(132) / 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(158) / 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(142) / 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(161) / 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(209) / 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(220) / 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(201) / 评论(0) 分类 英语口语练习册
学英语单词
389
A-axis
adopted longitude
adventurer
aleksei
alleve
Anglo-Israelite
anterior teeth negative space
attrition mill
bolt connection
Bretschneidera
canderos
cargo on runners
Carpinus londoniana
CD tower
chaise
coated duplex board with grey back
cross eye
DC-DC Controller
Deprez-d'Arsonval galvanometer
Derridean
deviation of sternpost centre line
dry catarrh
electric rail drill
element characteristics
endothelization
finger circumduction method
forced expiratory curve
full-rigger
genus Surnia
gillery
Good Clinical Practice
ground wave
hand brake pawl rod
hatteria
heading phenomenon
headstock gear
hurlocks
hygrometre
image-stone
isopropyl-beta-D-thiogalactoside (IPTG)
kapiti
Karula
know better than to do sth
lapstreak
LAVV
lemmatized
lower plunger
Lumpkin County
mainland
maternitywear
meekened
ministerial crisis
mispraising
multilinear heredity
multiple plunger pump
nissens
nuvenzepine
obstacle avoidance sonar
octakis-
on behalf of somebody
pel's crisis
phishing attacks
pickneys
polymer systems
porolithons
primary signal face
professional-service
provinciating
PSPE
recalescent point
rickettsia disease
rigid core wall
Ruffini's corpuscle
rushers
Saint-Raymond
salivatory reflex
seroprevention
silicondioxide
single hologram
sketch balls
special shading method
speed-independent training equipment
stachydrine
stationary level
Sujangarh
synthesis filter
Terman, Lewis Madison
test driven development
tetraodon nigropunctatus
tip up
tizanne
torsional fatigue strength
totol blindness
turing number
turning traffic
viciousest
white elephant sale
world trade centers
wound electrical capacitor
xaanthochroism
zbarsky