单词:selective insecticide
单词:selective insecticide 相关文章
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Plans for Haiti's recovery from the devastating earthquake are on the agenda at the United Nations donors' conference, March 31 in New York. Among the country's top priorities are the estimated 600,000 people who fled the capital, Port-au-Prince, for
This is the VOA Special English Agriculture Report. In two thousand eight, scientists reported on a study of cotton grown in six provinces in northern China. The study involved bollworms, a major threat to cotton farmers. It also involved Bt cotton,
Studies Link Bee Decline to Insecticide Billion-dollar bees Bees pollinate the flowers that become fruits, nuts and vegetables. The work these insects do is worth about $18 billion a year to U.S. farmers. But honeybee colonies in the United States ha
2002 翻译延伸 3、The role of natural selection in evolution was formulated only a little more than a hundred years ago, and the selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be r
It's bad enough that mosquitoes suck our blood, and sometimes pass on disease. But there's more. They can actually give you a disease and pee on you at the same time. Adding insult to injury if you will. Jerod Denton, a pharmacologist at Vanderbilt U
Explanation: In the United States, military service (or the time spent working in the army) is voluntary (or optional and something that one chooses to do). Under normal conditions, no one has to serve in the army if he or she doesnt want to. However
Whether it is mathematics or history, almost everyone has at least one subject they find to be more difficult to understand than other subjects. Some students may not be strong academically, lacking the skills they need to succeed in writing or takin
To Fight Malaria, Bed Nets Are the Most Important Weapon 蚊帐成为抗疟疾最重要的武器 From VOA Learning English, this is the Health Lifestyle report. United Nations researchers are reporting progress in the fight against the disease malari
New studies confirm that giving anti-malaria drugs to children who are already sleeping under insecticide-treated bed nets provides additional protection in helping control the disease. Smallpox was conquered with a single vaccine. The fight against
语言是评判作文的一个极其重要的因素。在实际的阅卷过程中,语法错误,尤其是较为严重的错误,是阅卷人员的主要照顾点,有时甚至是惟一的点;当然那样处理是有道理的,大家可以设想
By Lisa Schlein Geneva 27 November 2007 The Global Fund to Fight AIDS, Tuberculosis, and Malaria reports nearly every family with children in Africa soon could have a bed net to protect against malaria. The Geneva-based Global Fund says it has delive
seizure 检取;扣押 selective allowance 选择性免税额 selective marketing basis 选择性销售方式 selective tender 选择性投标;选择性招标 self-assessment 自我评税 self-clea
藻类Algae 两栖动物Amphibians 动物习性Animalbehaviour 动物资源Animalresources 节肢动物Arthropods 生物多样性Biologicaldiversity 生物资源Biologicalresources 生物圈保护区Bi
College tuitions are becoming prohibitively expensive for many people, with Harvard University now costing almost $61,000 a year for tuition, room, board and fees. Given the high price tag, is it worth it to graduate from a highly selective school ve
Spraying Insecticide Indoors Reduces Spread of Malaria Researchers in West Africa have shown that spraying insecticide indoors can dramatically reduce malaria transmission. Efforts to develop a malaria vaccine have so far been disappointing, so progr
和高智商的对象约会你需要提前知道哪些事情呢? 8 Things To Know Before Dating A Person With A High IQ Having a high IQ could be a tool at achieving so many great things if it is channeled in the right direction. Getting into a relat
How to get rid of procrastination? 如何摆脱拖延症? Just take the first step. 只需迈出第一步。 When you start to look too far into the future any task or project can seem close to impossible. And so you shut down because you become ov