单词：nematode population
单词：nematode population 相关文章
Lesson 9 Is It a Good Idea to Control Population Growth in the World? Text What Overpopulation Feels Like We moved slowly through the city in a taxi and entered a crowded slum district. The temperatur
高级口语教程
44 用来控制有害树种的昆虫 DATE=6-1-01 TITLE=ENVIRONMENT REPORT - Insects to Control Harmful Trees BYLINE=George Grow (Start at 1'01
文化聚焦
Alice: Hello! Im Alice and this is 6 Minute English. Im joined today by Abdu. Hi Abdu. Abdu: Hi Alice. Alice: Today were talking about ageing populations, pensions and retirement. Im going to start by asking you Abdu what age do you expect to retire?
六分钟英语
新编英语教程第五册unit05_2_aging_population
新编大学英语阅读部分
[00:00.00]MODULE 11 Population [00:02.09]模块十一 人口 [00:04.17]Unit 1It's the biggest cityin China. [00:06.23]第一单元它是中国最大的城市 [00:08.29]Listening and vocabulary2 Listen and choose thebest answer. [00:34.03]听力和词汇
新标准初中英语第五册
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you paid attention during high school biology, you probably remember that girls are born with all the eggs theyll ever have, whereas guys are churning
Scientific American(十一)月
[00:01.55]People need basic necessities [00:04.15]such as food,clothes and houses. [00:08.52]This means that more of our natural resources [00:11.87]like oil and coal are used [00:14.98]up to produce these things. [00:17.55]Also, more of our environm
外研社新标准初中英语九年级
[00:01.84]3 Listen and complete. [00:06.70]What have the children done for their project [00:10.30]on population? [00:11.96]Listen and complete their sentences. [00:16.14] [01:04.64]4 Listen and complete. [01:08.78]Listen and fill in the missing info
外研社新标准初中英语九年级
In so doing, I reached a frontier of biology so strange, so rich, 通过这样的方式，我来到一个非常古怪却又非常丰富的生物学领域， that it seemed as though it exists on another planet. 简直就像降临到别的星球一样。
TED演讲科学篇
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
农业与发展
This is Scientific Americans' 60-Second Science. Im Cynthia Graber. Thisll just take a minute. When is an ant like a piece of fruit? When its infected by a parasite. Researchers affiliated with the Smithsonian Tropical Research Institute discovered t
Scientific American(二)月
China's one-child policy combined with the preference for sons has skewed the population toward males. New research showing a strong correlation between that sex imbalance and savings rates offers some unexpected insights for financial services firms
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Cocoa Foundation Selects Researchers for US Study The scientists are from Costa Rica, Ghana, Vietnam, the Philippines and three from Cote dIvoire, the worlds largest producer of cocoa beans. While in the United States, theyll work with a mentor at re
VOA标准英语2012年(十二月)
The worlds population is getting bigger and bigger. Theres a population explosion in some countries. Im not sure if this is good or bad. The Earth can only support a limited number of people. One day, the worlds population will be too big to feed eve
纯正英语一分钟
By Robert Raffaele Washington 10 July 2007 This week marks the United Nations' annual observance of World Population Day (Wednesday July 11th) -- focusing attention on issues surrounding population growth worldwide. The annual event comes on the heel
2007年VOA标准英语（七月）
SHIJIAZHUANG, July 1(Xinhua) -- China on Sunday launched a campaign aiming to provide pension insurance to all rural residents and unemployed citizens in order to help the country cope with its aging population. We must ensure that the new pension in
英语新闻
LOS ANGELES, April 27 (Xinhua) -- Air pollution poses a threat to the health of about 154 million Americans -- or more than half of the U.S. population, the American Lung Association (ALA) said on Wednesday. The air is so polluted in some areas that
英语新闻
据新华社报道，十二五（2011-2015）计划期末，我国人口总量将达到 13.9亿左右，城镇人口将首次超过农村人口。60岁及以上老年人口在十二五期间将年均净增800万，并在2015年突破2亿。上世纪8
实用英语
By Jim Teeple Jerusalem 11 February 2008 For the first time in a decade there is a new accurate census of Palestinians living in the West Bank, the Gaza Strip and East Jerusalem. VOA's Jim Teeple has details from our Jerusalem Bureau. The new census
VOA常速英语2008年（二月）
Statistics New Zealand collects population numbers every year from 1st October to the end of September. The latest figures show that New Zealands population on September 30th was 4,414,400. This is equal to 0.06% of the worlds population. We have 33,
新西兰英语