胚期后发育

Let us study more closely the way in which a plant grows. The root pushes itself down into the earth. If it finds no water, it soon dies. If it finds water, it begins to suck it up and change it into

发表于:2018-12-30 / 阅读(159) / 评论(0) 分类 自考英语(一)78讲

DEVELOPMENT REPORT - World Population by 2050 By Jill Moss Broadcast: Monday, August 30, 2004 This is Gwen Outen with the VOA Special English Development Report. New research shows that Earth will hav

发表于:2019-01-06 / 阅读(191) / 评论(0) 分类 农业与发展

DEVELOPMENT REPORT - Fighting Malaria, Part 2 By Karen Leggett Broadcast: Monday, August 02, 2004 This is Robert Cohen with the VOA Special English Development Report. Today we report on some national

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 农业与发展

This is the VOA Special English Development Report. Last week we told you about FAILFaire, an event where people talk about international development projects that failed. Many of these projects started as good ideas. Others had some level of success

发表于:2019-01-12 / 阅读(152) / 评论(0) 分类 2010年VOA慢速英语(九)月

AS IT IS 2015-11-02 Can Fish Teach Humans to Regrow Teeth? 人类能学习鱼类的牙齿再生术么? Most people are born with two sets of teeth. They use baby teeth to break down food as children. As they become adults, the baby teeth are replaced

发表于:2019-01-12 / 阅读(166) / 评论(0) 分类 2015年VOA慢速英语(十一)月

DEVELOPMENT REPORT - Long-Life Concrete Bridges By Jill Moss Broadcast: Monday, June 07, 2004 This is Robert Cohen with the VOA Special English Development Report. Each year, road accidents kill a mil

发表于:2019-01-16 / 阅读(223) / 评论(0) 分类 农业与发展

ARI SHAPIRO, HOST: For the first time, scientists have altered the DNA in human embryos to make a fundamental discovery about early human development. Scientists say this proves that modifying genes and human embryos can reveal powerful insights into

发表于:2019-01-16 / 阅读(183) / 评论(0) 分类 2017年NPR美国国家公共电台9月

The current UN under-secretary general for Economic and Social affairs has revealed the UN is working on a new set of development plans once the current window for the Millennium Development Goals is reached in 2015. CRI's Hong Kong correspondent Xu

发表于:2019-01-19 / 阅读(146) / 评论(0) 分类 英闻天下

DEVELOPMENT REPORT - Malaria Vaccine By Karen Leggett Broadcast: Monday, April 05, 2004 This is Robert Cohen with the VOA Special English Development Report. Graphic Image Malaria is a very serious di

发表于:2019-01-30 / 阅读(193) / 评论(0) 分类 农业与发展

DEVELOPMENT REPORT - New Cervical Cancer Test for Developing Countries By Jill Moss Broadcast: Monday, March 01, 2004 This is Robert Cohen with the VOA Special English Development Report. Researchers

发表于:2019-01-30 / 阅读(205) / 评论(0) 分类 农业与发展

DEVELOPMENT REPORT - Adobe By Gary Garriott Broadcast: Monday, July 19, 2004 This is Robert Cohen with the VOA Special English Development Report. These days, stories about adobe are usually about Ado

发表于:2019-01-30 / 阅读(225) / 评论(0) 分类 农业与发展

This is China's final progress report on the MDGs before the adoption of the post-2015 development agenda later this year. According to the report, China has seen unprecedented transformational results in accomplishing the vision that was set out by

发表于:2019-02-04 / 阅读(141) / 评论(0) 分类 英语新闻

China in Pacific for common development: Chinese vice FM RAROTONGA, Cook Islands, Aug. 30 (Xinhua) -- Chinese Vice Foreign Minister Cui Tiankai firmly rejected suggestions Thursday that China's assistance to developing Pacific countries was aimed at

发表于:2019-02-07 / 阅读(202) / 评论(0) 分类 英语新闻

UNITED NATIONS, Feb. 26 (Xinhua) -- Mediating, strengthening governance and creating jobs were some of the UN objectives highlighted by UN Secretary-General Ban Ki-moon on Tuesday to ensure that people living in conflict areas or in countries emergin

发表于:2019-02-08 / 阅读(173) / 评论(0) 分类 英语新闻

China committed to back development of bamboo, rattan industry BEIJING, Nov. 6 (Xinhua) -- China is committed to boost the development of the bamboo and rattan industry, according to Chinese Vice Premier Li Keqiang. Li held a meeting in Beijing on Tu

发表于:2019-02-08 / 阅读(202) / 评论(0) 分类 英语新闻

SHANGHAI, June 20 (Xinhua) -- China will speed up the development of TD-LTE, the nation's fourth-generation (4G) telecommunications technology, during the next two years, an official with the country's top economic planning agency said Wednesday. Chi

发表于:2019-02-09 / 阅读(225) / 评论(0) 分类 英语新闻

China promises to promote sustainable development SAN JOSE, Oct. 25 (Xinhua) -- A Chinese official Thursday expressed here China's willingness and determination to work with the international community to promote sustainable development. Speaking at

发表于:2019-02-11 / 阅读(193) / 评论(0) 分类 英语新闻

MOSCOW, Dec. 12 (Xinhua) -- Russia's priority of future development would be in the east, President Vladimir Putin said Wednesday in a state-of-the-nation address to the legislature. In the 21st century, Russia's vector of development is East. Siberi

发表于:2019-02-13 / 阅读(188) / 评论(0) 分类 英语新闻

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour

发表于:2019-02-18 / 阅读(207) / 评论(0) 分类 英语新闻

BEIJING, May 9 (Xinhua) -- The State Council, China's cabinet, said on Wednesday that the country will step up efforts to promote informatization development and strengthen information security. Speeding up the construction of informatization and bui

发表于:2019-02-18 / 阅读(206) / 评论(0) 分类 英语新闻
学英语单词
'ope
acromicrias
across worksheets
advisoress
albizia lebbecks
application field
approximate profile
BCG
be in the closet
bendroflumethiazide
block initial statement
Bospoort
chain coccus
chisenhales
common houses
condemned balance sheet
conjugated glucuronic acids
contrabanded
contracepting
Daleke
data assembly
dependence relationship
desk potatoes
dictation machine
divisiory
east-sidest
evacuated collector
exception law
false pimpernel
fault diagnosis algorithm
feed pretreatment
Feriana
four-stagest
frame facet
front idler sprocket
gasometres
gradewide
head impact
herding behavior
immunological perspective
in every senes
in rough water
incorrect length status
indefinition
installing hole
international direct dialling
Isabella the Catholic
ketoprofen
kilaueas
leafy spurges
leptophion maculipennis
Lophodon
mail fraud
mammalian cell
mattress-suture
mean refuelling rate
medium type hog
mesorecta
micro sample
minimum content of natural law
navigation tunnel
ncate
nitrosulfathiazole
non-segmental
nonapplicants
nonunique alternate key
normal polytropic compression
overemotes
ovomacroglobulins
pdds
pentane candle
perfect switch
pk
planned availability
plasma atomic fluorescence spectrometry
polysaprobic zone
portering
practicableness
puccinioid
rattling on
remove goods
Rhogas japonicus
rhyolite-pitchstome
root celeries
routines
sandy-brown
sclerotic osteitis
setting off against
sewage quantity
sound-proof shield
spectral band absorption
spillway
splanchnoskeleton
stroke multiplier
superband
taconic movement
transduction principle
turdidaes
ultrasonic blood flow meter
unipotential type
weekly return
wildgrave