经过推广的良种

Mrs. Lee: Is this your dog? Tony : Yes, it is. Why? Mrs. Lee: Well, your dog chases my cat. Tony : Oh, I'm sorry. Mrs. Lee: Please keep your dog on a leash. Tony : Yes, ma'am. 这是你的狗吗? 李太太:这是你的狗吗? 托 尼:是的。怎么

发表于:2018-11-27 / 阅读(972) / 评论(0) 分类 赖世雄初级美国英语

Everyfall, you need a new flu shot. Let's consider these vaccines training ourimmune system, the recognize specific strains of flu. Identifying by two protein on the virus coat, hem agglutinin(血细胞凝集素) and neuraminidases(神经氨酸酶).

发表于:2018-12-02 / 阅读(115) / 评论(0) 分类 Scientific American(十二)月

Every fall, you need a new flu shot. Thats because todays vaccines train your immune system to recognize specific strains of flu, indentified by two proteins on the viruss coat, / and /. Thats where the H and N come from in H1N1. Problem is those pro

发表于:2018-12-02 / 阅读(151) / 评论(0) 分类 Scientific American(十二)月

Success Is Counted Sweetest 成功的含义 Success is counted sweetest 从未成功的人们 By those who ne'er succeed. 最懂得成功的甜美. To comprehend a nectar 惟有极度的渴求 Requires sorest need. 方能体会甘露的滋味. Not on

发表于:2018-12-07 / 阅读(95) / 评论(0) 分类 感悟人生

What are the most difficult and useful things people have to learn in their 20s? 二十几岁的人最该学也最难学的是什么? 获得10.1k好评的回答@Brandon Chu These are the most difficult things I've learnt/am still learning. 这些是

发表于:2018-12-12 / 阅读(121) / 评论(0) 分类 阅读空间

The World Health Organization says about 500,000 people die every year from seasonal flu. To combat that, doctors recommend getting a flu vaccine at the beginning of each flu season and researchers are now working on a universal vaccine that could pr

发表于:2018-12-16 / 阅读(103) / 评论(0) 分类 VOA标准英语2010年(十二)月

Chinese veterinary experts say the outbreak of the H7N9 bird flu virus has not triggered an epidemic among poultry. The virus has been detected in chickens, pigeons and environmental samples in poultry markets in Shanghai. Researchers have yet to mak

发表于:2018-12-19 / 阅读(116) / 评论(0) 分类 英闻天下

JUDY WOODRUFF: Next, a long looked-for breakthrough in the battle against the deadly Ebola virus. One experimental vaccine has been shown to be 100 percent effective on humans. Hari Sreenivasan has the story. HARI SREENIVASAN: The results of a two-ye

发表于:2018-12-31 / 阅读(92) / 评论(0) 分类 PBS访谈健康系列

We all have Escherichia coli bacteria in our intestines. These are the good strains of the bacteria. They help us digest our food. There are billions of these bacteria in our intestines and in our feces. Of the hundreds of strains of good E. coli, th

发表于:2018-12-31 / 阅读(110) / 评论(0) 分类 365个英语简短小故事

英文歌曲:lullabyeTynisha Keli This is your Lul-Lul-Lul-Lul-Lul-Lul-Lul-Lulla-bye You're my baby And I sing this just to show your mine I'm a hold you til you Sleepin in the middle of the night This is your Lul-Lul-Lul-Lul-Lul-Lul-Lul-la-bye Clo

发表于:2019-01-10 / 阅读(150) / 评论(0) 分类 E乐吧

Tuberculosis Found in 18th Century Bodies 结核病发现于18世纪的尸体 Researchers have found tuberculosis bacteria in 200-year-old human remains. The researchers say the discovery is surprising. The remains came from a Hungarian church where

发表于:2019-01-12 / 阅读(120) / 评论(0) 分类 2015年VOA慢速英语(四)月

Hungrier Planet Strains Water Supply Thirsty food Water. As the population grows, there are more and more people at the tap every day. But when it comes to the worlds demand for water, drinking it is just the beginning Food - and agriculture in parti

发表于:2019-01-13 / 阅读(108) / 评论(0) 分类 VOA标准英语2012年(三月)

Tumultuous Year Strains US Pakistani Relations Pakistan and the United States have maintained a critical strategic partnership for the past 10 years despite tense relations over the war in Afghanistan and U.S. suspicions that Islamabad maintains ties

发表于:2019-01-13 / 阅读(91) / 评论(0) 分类 VOA标准英语2011年(十二月)

Ebola Strains Sierra Leone Healthcare The Head of World Hope International says Sierra Leone has a shortage of ambulances and isolation centers, making it much more difficult to contain the Ebola outbreak. The virus has killed more than 600 people in

发表于:2019-01-14 / 阅读(82) / 评论(0) 分类 VOA标准英语2014年(十月)

胡须上的细菌帮助发现新抗生素 Widespread use of antibiotics for conditions that don't require them has spurred mutations in bacteria strains, turning them into so-called superbugs. 抗生素的滥用引发细菌产生变异,成为所谓的

发表于:2019-01-14 / 阅读(78) / 评论(0) 分类 VOA标准英语2016年(二月)

Bacteria Might Share the Blame for Eczema 皮肤湿疹可能是细菌惹的祸 Your skinlike many other parts of your bodyis crawling with microscopic critters. It's a microbial zoo in a sense. Heidi Kong, a dermatology researcher at the National Ins

发表于:2019-01-20 / 阅读(126) / 评论(0) 分类 2017年科学美国人(七)月

英语作文-中考 Directions: For this part you are allowed thirty minutes to write a composition on the topic Is Stress a Bad Thing? You should write no less than 150 words and base your composition on the outline (given in Chinese) below: 1.有的

发表于:2019-02-01 / 阅读(97) / 评论(0) 分类 英语作文

By Phuong Tran Dakar 06 August 2007 In eastern Chad, violence along the Sudanese border has forced more than 100,000 Chadians into camps. Clinics run by international agencies try to contain and treat diseases that circulate in often waste-infested t

发表于:2019-02-03 / 阅读(142) / 评论(0) 分类 2007年VOA标准英语(八月)

UNITED NATIONS, April 15 (Xinhua) -- A new polio vaccine will be rolled out next week to replace the one which protects against all three strains of wild poliovirus. It marked the beginning of the largest and fastest globally coordinated rollout of a

发表于:2019-02-05 / 阅读(104) / 评论(0) 分类 英语新闻

An analysis by the Associated Press has indicated an Amtrak train in Philadephia was traveling about 107 miles per hour as it approached the curve and crashed. The speed limit was 50 miles per hour. At least 7 people were killed, 2 hundred others wer

发表于:2019-02-11 / 阅读(149) / 评论(0) 分类 美联社新闻一分钟2015(五)月
学英语单词
Alaigne
alcoholic cirrhosis
allowable amount of unbalance
aminoadipic
amorphous silicon gemanium film
armed retaliation
Association of American Ship Owners
bialar
birth mother
blind hinge
Bond number
born fool
Calotropis gigantea L. Dryander
canemaker
chapnick
Charworker
checkbook diplomacy
circuitously
consumable electrode welding
critical rate of rise of off-state voltage
cystitis senilis feminarum
data link level
demineralized water/boric acid ratio control loop
dicoria
double-u
ebulliometer
fertility factor (f factor)
food-collecting
four-hours
freudenthal
friction coefficient
generative transformational grammar
grade book
grass cylinder
guyfriends
Gymnocoronis
heat spacer
house majority leader
hydroxyformobenzoylic acid
intervening cooling
Isinya
jus honorarium
Kajakī, Band-e
Kietrz
kyanopsia
L-roemerine
larchen
liftering
longitudinal parity
m. ilicus
magic guide bush
Manduria
melane
methodless
multiple grid method
multiplex operation
musculi sphincter pylori
Nehru jackets
New Hebrides Trench
Ni-hard cast iron
noncontentious
normal specification
o-bromonitrobenzene
o.r
oil-fired heating system
overcompound excitation
ozouf
portable fire-fighting appliance
possessionless
posterior urethral valve
private wiper
pyrrolidine carboxylic acid
radar electronic scan technique (rest)
raw-silk waste
registration of ships
ring-shapeds
rod drop experiment
scaling assumption
scatacratia
shaikhas
show-cause letter
simple basis
skimboarder
sodium salt
special permission export
spenlows
Ssi, small-scale integration.
stairclimber
stria olfactoria intermedia
suprasternal region
tailor's ankle
test-condition combination
tetragonal pyramid bemihedral class
unilateral instrument
upthrust flower structure
Veerse
Visc.
voltage to neutral
Wheaton
witheringly
wood joist floor
zebrasoma