突变负荷

Mummies Contain Clues to Colon Cancer 木乃伊包含了结肠癌的线索 From VOA Learning English, this is the Health and Lifestyle report. Colon cancer is linked with obesity, lack of exercise, and a poor diet high in processed foods. However, sc

发表于:2018-12-16 / 阅读(148) / 评论(0) 分类 2016年VOA慢速英语(三)月

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(192) / 评论(0) 分类 TED演讲国际问题篇

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

发表于:2018-12-24 / 阅读(176) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I'm Steve Mirsky. Got a minute? A strain of mutant mice groom compulsively till they seriously injure themselves. The condition is considered a good animal model for OCD, and its similar to the human d

发表于:2018-12-24 / 阅读(204) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Time to bring back the Office of Technology Assessment. The OTA was created in 1972 to provide Congress with an objective analysis of complex scientific and technologi

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(二)月

人的一生中,将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时;即使成年后,每夭至少要睡 6~7小时。 不管睡眠时间长短如何,睡觉看来是人必不可少的行为。这一点

发表于:2018-12-27 / 阅读(194) / 评论(0) 分类 英语听力广播—Listening

084 Donkey and the Load of Salt Once upon a time, a salt merchant moved from place to place selling salt. One day, he was walking on a bridge over a stream with salt loaded on the back of a donkey. Yo-ho! Yo-heave-ho! Donkey and the Load of Salt The

发表于:2018-12-31 / 阅读(372) / 评论(0) 分类 100个儿童英语小故事

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. If evolution weeds out detrimental traits, why do some seem to stick around? Well what's bad in our current environment may have been good in the conditi

发表于:2019-01-08 / 阅读(214) / 评论(0) 分类 Scientific American(六)月

Once, there lived a peddler. The peddler sold all sorts of goods.sturdy shoes for the farmers and pretty trinkets for their sweethearts, warm, woolly shawls to keep the women warm and sweet, sticky toffees for the children to munch on their way back

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 英语小短文

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(252) / 评论(0) 分类 英语新闻

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

发表于:2019-01-11 / 阅读(169) / 评论(0) 分类 VOA慢速英语2008年(五)月

A bus load of politicians were driving down a country road when all of a sudden the bus ran off the road and crashedinto a tree in an old farmer's field. The old farmer after seeing what happened went over to investigate. He then proceeded to dig a l

发表于:2019-01-16 / 阅读(244) / 评论(0) 分类 趣味英语

After the French had left Moscow,two peasants went out to search for treasures.One was wise,the other stupid.They went together to the burnt part of the city,and found some scorched wool.They said:That will be useful at home. They gat

发表于:2019-01-16 / 阅读(227) / 评论(0) 分类 趣味英语

Talking about work load A: Thank God! I am finished writing that service guide! It took me forever! B: When did you finish? A: This morning! No more overtime, and no more headaches! B: Well, Im glad to hear it. Have a cup of coffee! 议论工作量 A:

发表于:2019-01-20 / 阅读(289) / 评论(0) 分类 办公室英语口语

Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来,口吃可以归咎

发表于:2019-01-26 / 阅读(228) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Cancer genetics 癌症遗传学 Gene therapy 基因疗法 Genetic mutations predict which cancers will respond to treatment 基因突变将预测某种治疗会对哪些癌症起作用 THE International Cancer Geno

发表于:2019-02-04 / 阅读(204) / 评论(0) 分类 经济学人科技系列

为何人类爱吃肉 对多数人类来说,肉的味道非常美妙。众多的美食中,为何我们对它情有独钟呢? It is no less remarkable for people today, even those of us whose tastes run more to sirloin. Because if you look at wh

发表于:2019-02-18 / 阅读(246) / 评论(0) 分类 阅读空间

Surviving Cancer Twice 两次战胜癌症 After overcoming ovarian and breast cancer, the actress opens up about getting healthy, returning to work and the health challenge she still faces 在克服了卵巢癌和乳腺癌之后,这位女演员开始

发表于:2019-02-21 / 阅读(245) / 评论(0) 分类 人物杂志

Who do you think your pet is? Learning from Your Dog's DNA 你认为你的宠物是谁?狗狗DNA中的发现 A simple cheek swab can reveal your dog's ancestry, provide insight into its health and even help explain its behavior 擦一下狗的脸就可

发表于:2019-02-21 / 阅读(248) / 评论(0) 分类 人物杂志
学英语单词
a lack of sulfur
additive utility function
agro-climatically
alkaline milling fastness
alvarezsauroids
apparats
argosies
Biblis
bire(british institution of radio engineers)
bk tube bk
blood dryness causing wind
brush shunt
cantraips
carcinomatous pleurisy
caryophyllid
cast steel wheel
cheop
cloherty
cohesion-tension
cold-brittleness
coleosporium bletiae
constructive metamorphism
cooling drums
curved line
Denham Ra.
digiti-
dipturus kwangtungensis
drinking refusal
drop it
e-nf
Eads, James Buchanan
el-ergh (al irq)
endoral membrane
exaggeration (mohr 1923)
exhiliration
family plannings
filled facies
fluorosulforic acid
glass dimmer
grit compartment
grouped frequency
gudgeon pins
heavy-alloyed
hicks substitution effect
hierological
honey bucket
hopsons
horis
isoetaceaes
jemelle
Las Peňitas
leading face
let go of me
LGTI
Lillian Gish
log-on message
magnesium sulfide
metric wire gauge
mililani town
mincings
multi-periods
multibrand policy
neutron history
nonanthropologist
nonhero
noonpakdi
nusa tenggaras
obstacle course
on the defensive
orbit-transfer problem
outer gearing
PECT ,PET
persevering
prairie gourd
precaval vein
protective plate
Queen of Sheba
randomized
reamer tap with handle
reset active
restoration
reticulaphis distylii
scorched-earth policy
scram limit(value)
sculpt
self-excited alternator
self-magnetic environment
shotshell
solaires
stiffener loader
Summerson
thermo controller
throttling flowmeter
thyreoiaism
time-transgressive
trainess
tuberosity maxillary
turkey-chicks
unsharable
vapor treatment
video cassette system
weatherizes