卵巢粒层细胞

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(169) / 评论(0) 分类 VOA2003(下)-环境与健康

第六章 女性生殖系统 Chapter 6 Female Reproductive System areola of breast 乳晕 abdominal orifce of uterine tube 输卵管腹腔口 anal region 肛区 ampulla of uterine tube 输卵管壶腹 anococcygeal ligament 肛尾韧带 areolar gland 乳晕腺 axillary process 腋

发表于:2018-12-05 / 阅读(164) / 评论(0) 分类 医学英语

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(103) / 评论(0) 分类 Scientific American(十二)月

[ti:] [ar:] [al:] [by:] [00:01.00] Late At Night, Do You Turn Off Your Cell Phone? 今夜不关机 [00:08.22]Today, my friend asked me a question. [00:11.17]At night, do you turn off your cell phone? [00:14.78]If you dont, whom do you leave it on for

发表于:2018-12-26 / 阅读(132) / 评论(0) 分类 温馨夜读

The Great Tomato Debate 有名的西红柿辩论 In 1893, the U.S. Supreme Court heard a case that hinged on whether the tomato was a fruit or a vegetable. 1893年,美国最高法院有一场关于西红柿到底是水果还是蔬菜的案子。 De

发表于:2018-12-28 / 阅读(144) / 评论(0) 分类 初学者听力文摘精选

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(152) / 评论(0) 分类 国家地理2008年

For in nature it takes thirty years for two hundred eggs to reach maturity. 因为在自然状态下,要让两百个卵子成熟需要三十年之久。 But our business is to stabilize the population at this moment, here and now. 但我们现在的任

发表于:2019-01-01 / 阅读(100) / 评论(0) 分类 美丽新世界

The girl would turn her cell phone off and put it by her photo on the desk everynight befor going to bed. This habit had been with her ever since she bought the phone. The girl had a very close boyfriend,when they couldn't meet ,They would either cal

发表于:2019-01-02 / 阅读(99) / 评论(0) 分类 每天一点英文

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(105) / 评论(0) 分类 VOA标准英语2008年(五月)

SCOTT SIMON, HOST: Three-D printers are being used these days to make all kinds of things - jewelry, artwork, or even guns. Now, scientists have used a 3-D printer to create a functioning mouse ovary. Yes. NPR's Rob Stein explains. ROB STEIN, BYLINE:

发表于:2019-01-17 / 阅读(91) / 评论(0) 分类 2017年NPR美国国家公共电台5月

Gene Stops Ovaries from Testifying A mouse study in the journal Cell finds that a gene in females must remain active throughout her life to keep her ovaries from turning into testes. Karen Hopkin reports Little girls are made of sugar and spice and,

发表于:2019-01-30 / 阅读(229) / 评论(0) 分类 60秒科学

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(129) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(129) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(256) / 评论(0) 分类 英语新闻

10 Things You Didnt Know About Cell Phones Just when we feel comfortable enough to say wow, cell phones have really changed the way we operate, things get even weirder. Here are 10 facts about cells from around the world that show the scale and style

发表于:2019-02-07 / 阅读(239) / 评论(0) 分类 阅读空间

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(238) / 评论(0) 分类 趣味英语

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(140) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(184) / 评论(0) 分类 英语新闻

Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti

发表于:2019-02-24 / 阅读(129) / 评论(0) 分类 阅读空间
学英语单词
absolute convex hulls
acyl-azo-compound
advanced gallery
Al Qurayn
analogue aerotriangulation
andaman marbles
antenna positioning
autnumber
be jealous of
besmutched
bias-off
Biermannia
Blue Helmets
bottom note
break-even sales
business-machine receiving timing
centralized architecture
chi-squared test with fixed marginal totals
chic-ly
co-ordinancy
coefficient of reproduction
colour fastness to daylight
Corydalis dasyptera
CRT monitor
Diodon hystrix
Diogenes Of Babylon
dope dyeing
draw yourself up
driving blade
external arcuate ligament of diaphragm
extra budgetary resources
fancy stripper
fatty-acid
feard
float chamber cover
freeze-blowing
giddy gaddy
GlcNAc
have a bad conscience
heat-resistant concrete
hystericizing
impacting acceleration
infective conjunctivitis
isotaxy
jeedai
kallikrein-Trypsin inhibitor
King Peninsula
left inguinal region
les ballet jazz de montreal
licking
linear recursive estimation
look what you've done
Loss of Fish
majidi
Martens thermal endurance
mean spherical candle power
measurements by impulsive sound
microalbuminuric
mid ir
mixed flow pump
Nabidae
neuronal ischemic change
no-load starting electro pneumatic valve
onwise
page printer formatting aid
pasteure management
pathoglycemia
PBS-T-S
placenta obsoleta
ploughings
pocket ammeter
polar operation
polyphagic
practical efficiency of solar array
prefinalists
RC-cola
reflecting microscope
Reliability Availability and Serviceability
river styxes
rudolfinum
satvika (india)
screw coupler
scum-cock
second trimester of pregnancy
secondary network
secondary radioactivity
semi-supplement
short-period mode of motion
signing on
single-flow type boiler
single-precision number
single-u groove
solvation of ion
stationary grate
sub-tow
synchronizing pulse separator
tax payers personally filing returns
thumb wheel
transfer prices among commercial enterprises
upper class
violons