染色体嵌合体(同一个体的细胞群中有不同的染色体数或核型者)

Alice: Hello, I'm AliceStephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to tell stories in my sleep. Al

发表于:2018-11-29 / 阅读(257) / 评论(0) 分类 六分钟英语

AMERICAN MOSAIC By Broadcast: Friday, January 30, 2004 (THEME) HOST: Welcome to AMERICAN MOSAIC -- a program in VOA Special English about music and American life. And we answer your questions. (THEME)

发表于:2018-12-07 / 阅读(289) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - What to Call a Storm? How Scientists Name Hurricanes By Dana Demange and Nancy Steinbach Broadcast: Friday, September 23, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Specia

发表于:2018-12-07 / 阅读(248) / 评论(0) 分类 American Mosaic

Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have

发表于:2018-12-24 / 阅读(156) / 评论(0) 分类 Scientific American(十二)月

Idiom: Like a moth to a flame ( doing something attractive and dangerous ) Hit the book: Potion Disability Inspire Down syndrome Chromosome

发表于:2018-12-27 / 阅读(201) / 评论(0) 分类 趣味青春英语

梦游症是会遗传的。 Alice: Hello, I'm Alice Stephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to

发表于:2018-12-27 / 阅读(214) / 评论(0) 分类 一起听英语

93 探究长寿基因 SCIENCE REPORT - September 12, 2001: Search for Long Life GeneBy Nancy Steinbach (Start at 1'01

发表于:2019-01-02 / 阅读(162) / 评论(0) 分类 科技之光

AMERICAN MOSAIC - Christmas in the U.S. By Nancy Steinbach and Cynthia Kirk Broadcast: Friday, December 24, 2004 DOUG JOHNSON: Welcome to American Mosaic, in VOA Special English. This is Doug Johnson.

发表于:2019-01-02 / 阅读(206) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - Sam Gilliam: A Painter Who Always Tries Something New By Dana Demange, Katherine Gypson and Jerilyn Watson Broadcast: Friday, December 09, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSA

发表于:2019-01-02 / 阅读(397) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - When It Ain't Right to Use 'Ain't' in English, and When It Is By Dana Demange and Nancy Steinbach Broadcast: Friday, December 16, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VO

发表于:2019-01-02 / 阅读(304) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - Up, Up and Away ... to a Balloon Museum in Albuquerque By Lawan Davis and Nancy Steinbach Broadcast: Friday, October 07, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special

发表于:2019-01-02 / 阅读(373) / 评论(0) 分类 American Mosaic

Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. Rosie: Hi there. Neil: Well, today we're talking about men. Rosie: That sounds interesting. Neil: It is very interesting especially if you'r

发表于:2019-01-07 / 阅读(229) / 评论(0) 分类 六分钟英语

Scientists at the Whitehead Institute in Cambridge, Massachusetts say it's fortunate for humans that the Y chromosome is not on the verge of extinction. That's because the Y is the chromosome that makes males males. The outlook is less favorable for

发表于:2019-01-08 / 阅读(411) / 评论(0) 分类 2005年NPR美国国家公共电台

AMERICAN MOSAIC - Friday the 13th: So What's the Big Deal? By Nancy Steinbach,Caty Weaver Broadcast: Friday, May 13, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. I'm Gwen Out

发表于:2019-01-11 / 阅读(329) / 评论(0) 分类 American Mosaic

This is the VOA Special English Health Report. A miscarriage is the natural loss of a pregnancy before the twentieth week. This happens to as many as twenty percent of known pregnancies. Experts say many pregnancies end before a woman even knows she

发表于:2019-01-11 / 阅读(158) / 评论(0) 分类 2010年VOA慢速英语(八)月

Tick-tock, tick-tock. Is that your biological clock? And if it is, are you female? Most people think biological clocks are strictly female phenomena, with infertility and the risk of certain diseases

发表于:2019-01-26 / 阅读(216) / 评论(0) 分类 阅读空间

AMERICAN MOSAIC - Baseball Season Opens / Quilt Exhibit / Faith Hill By Nancy Steinbach Broadcast: Friday, April 09, 2004 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. (MUSIC) This

发表于:2019-01-30 / 阅读(243) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - Where Do Martians Go When They're in Seattle? By Brianna Blake and Dana Demange Broadcast: Friday, June 24, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. I'm

发表于:2019-01-30 / 阅读(300) / 评论(0) 分类 American Mosaic

Autism 自闭症 Why it's not Rain Woman 为什么它不是雨女 Women have fewer cognitive disorders than men do because their bodies are better at ignoring the mutations which cause them 与男性相比,患有认知障碍的女性较少,因为她

发表于:2019-02-16 / 阅读(141) / 评论(0) 分类 经济学人科技系列

1 Compared with conventional beef, grass-fed beef is higher in this health-promoting nutrient, which gives its fat a yellow color: 1、与传统牛肉相比,草饲牛肉中某种有益健康的营养素含量更高,并让脂肪呈现黄色,这种

发表于:2019-02-18 / 阅读(217) / 评论(0) 分类 阅读空间
学英语单词
above sb
acquittals
after-glow duration
anschool
arrasenes
axiom schemes
azorubin test
backroom stock
bag sample
basic access model
Bills of Exchange Law
bootlaces
boylan
cart wheel
cell delay variation
Chiaromonte
Clausius-Dickel thermal diffusion column
clear makeup
colatitude
computer browser
counting house books
creeping strength
crown rent and premium ordinance
cryptographic exchange
cube-connected cycles
diver's watch
Dokuchayevsk
drapp
dual-circuit braking system
entoloma juncinum
equivalent axis coil
european tortoises
exploitation engineering
fetch candle
filtering stage
fusion-in-a-jar
gas grill
gear shaper
grid-based
half-bounds
have more than one's fair share of something
Hudimesnil
impact stroke
ingemar
Koyama-ike
l.e.d
Ledrit
linear speed method
malbecs
man watching
Mandraki
maneuverable reentry vechicle
march formation
monchloroethane
mud-fish
multi-pass core
narcosis therapy
Nddt
nerditude
Ofuasi
performance test of high pressure feed water heater bypass
peribronchial
pericardial region
pipebox
plumpnesses
poles of ecliptic
precondemned
Punkudutivu I.
put sth before sth
race-neutral
radio sun
repeated diving
residential neighbourhood
ride horseback
rotating-field type
RTPB
Saw-lumber
shearing cubic equation
side window lock
smoking tracer mixture
soury
sparbled
spark shadowgraph
special interest
statutory successor
steadies
stilbene dyes
strain hardening coefficient
struma fibrosa
superstimulates
supply-led
swordtailed
taeaium
tea-poy
the White House
tooth-socket device
transport cooperative
tremendum
tribol
twiddling
wild animals refuge area
Wilmington