遗传修复机制

Astronauts at the International Space Station have overcome initial fears and are preparing to perform the first spacewalk beneath the shuttle to repair two dangling pieces of material. The material, used to fill gaps between tiles, is sticking out b

发表于:2018-12-05 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

This is AP News Minute. A gunman on the 32nd floor of a Las Vegas hotel casino rained heavy fire down on a crowd of over 22,000 at an outdoor country music festival Sunday night, turning the expanse into a killing ground, from which there was little

发表于:2018-12-15 / 阅读(109) / 评论(0) 分类 美联社新闻一分钟2017(十)月

雅思阅读文章中的信号词就好比是高速公路上的标识牌,见到了它们,就可以知道目的地距离自己的位置还有多远,需要直走,还是拐弯。考生应根据这些信 号词来判断应该采取精读.跳读或是

发表于:2018-12-19 / 阅读(86) / 评论(0) 分类 雅思英语

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-02 / 阅读(102) / 评论(0) 分类 60秒科学

By Zulima Palacio Washington 14 September 2007 University scientists in the United States have taken what they say is an important step in the effort to end malaria. At Johns Hopkins Malaria Research Institute, scholars recently identified a sugar in

发表于:2019-01-06 / 阅读(96) / 评论(0) 分类 2007年VOA标准英语(九月)

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-08 / 阅读(94) / 评论(0) 分类 Scientific American(四)月

[00:22.13]Xiao Hu:Can you help me,Dick? [00:35.27]Dick:Yes.What is it? [00:37.88]Xiao Hu:I'm going to repair the window. It's broken. [00:42.71]Dick:What can I do for you? [00:45.14]Xiao Hu:Hold the ladder for me,please [00:48.35]Dick:OK.But be caref

发表于:2019-01-09 / 阅读(189) / 评论(0) 分类 小学英语北京版

Lesson 64: [00:03.58]What Do You Know?Have You Seen These Words? [00:09.35]bag bit,a bit of I have a bit of plastic.It's a white bit. [00:18.00]It's small.Look!I can hold it in my hand. [00:23.95]least,less [00:27.43]There are three bags of garbage.I

发表于:2019-01-09 / 阅读(199) / 评论(0) 分类 河北加拿大版初中英语

[00:53.89]Lesson 25 [01:04.47]What are Bob and Tang Ling going to do with the wall? [01:11.52]They are going to paint the wall white put up a notice saying Keep off, [01:19.60]and drill a hole for the electric wires. [01:25.55]Language points [01:30.

发表于:2019-01-10 / 阅读(222) / 评论(0) 分类 高中英语人教版高三

Australian scientists say an organic compound used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosm

发表于:2019-01-11 / 阅读(74) / 评论(0) 分类 VOA标准英语2008年(八月)

Under UV light, this mosquito larva reveals a red fluorescent marker in its nervous system, causing eyes and nerves to glow. The marker's presence tells the researchers in Riehle's team that this individual carries the genetic construct rendering it

发表于:2019-01-13 / 阅读(88) / 评论(0) 分类 VOA标准英语2010年(七)月

Scientists Sequence Smallest Genome Ever With Antarctic Fly 科学家从南极苍蝇测定最小基因序列 Scientists have just sequenced the genome of a fly native to Antarctica, the coldest, driest and windiest place on the planet, a finding that

发表于:2019-01-14 / 阅读(44) / 评论(0) 分类 VOA标准英语2014年(八月)

Just below the Arctic Circle in northern Sweden sits a town called ?verkalix. Its home to only about a thousand people. But those inhabitants were the subject of a seminal study in human genetics. The research suggests it that what our parents, or ev

发表于:2019-01-20 / 阅读(45) / 评论(0) 分类 2015年Scientific American(十二)月

Selective Breeding Molds Foxes into Pets狐狸变成狗 Want to make a dog? Well, wolves evolved into dogs at least once. But it turns out you can also make whats basically a dog by starting with wild foxes. Select the ones that do not seem to want t

发表于:2019-01-20 / 阅读(42) / 评论(0) 分类 2017年科学美国人(五)月

(1) T:Look at number 1. I feel tired.我感觉很累。What's that?什么? S: Hesays that he feels tired.他说他感觉很累。 (2) T:Number 6. I've got a headache.我头痛、What's that?什么? S:She says that she's got a headache.她说

发表于:2019-01-23 / 阅读(63) / 评论(0) 分类 英语学习乐园

By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how

发表于:2019-01-31 / 阅读(86) / 评论(0) 分类 VOA常速英语2007年(十一月)

If you frequently find yourself covered in mosquito bites, while others escape without so much as an itch, you can blame your genes. 如果你发现蚊子特别喜欢叮你,而其他人都安然无恙,这其实与你的基因有关。 For British

发表于:2019-02-04 / 阅读(57) / 评论(0) 分类 阅读空间

WASHINGTON, April 21 (Xinhua) -- U.S. researchers said Monday that muscle weakness from long-term alcoholism may be due to an inability of mitochondria, the powerhouses of cells, to self- repair. In research conducted with rats, the researchers found

发表于:2019-02-05 / 阅读(130) / 评论(0) 分类 英语新闻

OBRENOVAC, Serbia, May 19 (Xinhua) -- Serbia needs help to repair the consequences of the catastrophic floods, Serbian Foreign Minister Ivica Dacic said after touring town of Obrenovac with ambassadors of several dozen countries. After water started

发表于:2019-02-06 / 阅读(91) / 评论(0) 分类 英语新闻

A man took a pair of shoes to a shoe repair shop and said to the shoemaker, I'd like you to repair these shoes for me, please.Certainly, sir, the shoemaker said. When will they be ready? the man asked. I'm a bit busy, but they'll be ready for you on

发表于:2019-02-18 / 阅读(68) / 评论(0) 分类 趣味英语
学英语单词
acid-test ratio
ahigh
arc suppressing coil
as crooked as a dog's hind leg
asswhore
automatic stabilizer
avoiding chord
azzones
ballsbridge
Bergatreute
biocapacity
bleached paddy soil
buckling criteria
Cimanuk, Sungai
closed grating
coefficient of utilization of useful capacity
colloidal fuel
colpeurynter introducing forceps
commodity producer
conductive band
convolation
cordons sanitaires
cross sell
dessicator
dicky-seat
Dmitrovsk-Orlovskiy
dominant laterality
double squirrelcage motor
ecological system
elevator apron
epimera
erysipelas gangraenosum
eschewal
Football's a game of two halves
forfending
formula plan
froben
genus limnobiums
glucoscilliphaeoside
Hall's anchor
hip line
homer a. thompsons
hydraulic-machinery
ignition-switch
input-output interface system
instantaneous center/centre of rotation
intrumental
isothymol
keyboard input
klepto
liver coccidiosis
log well
maritime law institute
mass-energy
mincer and bowl cutter
mode of transducer
Montils
multiethnic education
no-claim
nonresponses
one-hundred-dollar
passive infrared rangefinder
pedaling
permissible limit of vibration
personal contact
phospholipidomics
Photinia chingiana
phylum chaetognathas
Piggott
pinnatifid
posumbu
prosperoes
pseudotriton ruber
pyramid method of hull construction
pyrenophora japonica ito et kuribayashi
Ranella
reaming bit
rhyacophila formosana
ringal
screen house
searls
Semple treatment
sexidentate ligand
Sheykino
silicon impregnation
Soltvadkert
spermatorrheas
subspectra
syndesm-
Thal Des.
thixotropic hardening
thorup
three-membered
twin tail
two-track recorder
vacuum-gauge
Vallen
very low frequency band radiated field system
Vila da Maganja
vision signal
Wairio
wind measuring device