单词：biotic pesticide
单词：biotic pesticide 相关文章
AGRICULTURE REPORT - Jojoba: Not Your Usual Oilseed CropBy Mario Ritter Broadcast: Mon, 3 Jul 2006 16:00:00 UTC I'm Shep O'Neal with the VOA Special English Agriculture Report. Jojoba plants We have a
2006年慢速英语（七）月
03 警惕杀虫剂的危害 DATE=2-20-01 TITLE=AGRICULTURE REPORT - (1)Pesticide Warning BYLINE=George Grow (Start at 1'00
科技之光
By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria
2007年VOA标准英语（二月）
STEVE INSKEEP, HOST: This year Americans will spend more than $2 billion on probiotics, supplements aimed at boosting what are called good bacteria inside us. One part of the market that's growing rapidly is probiotics for babies and kids. Here's NPR
2018年NPR美国国家公共电台5月
Pesticide Additive Could Be One Culprit in Bee Deaths 农药添加剂是蜜蜂死亡的一大诱因 Springtime is flower season. And that includes some 90 million almond trees in California. It's the largest pollination event in the U.S.and beekeeper
2017年Scientific American(二)月
Pre-Listening Vocabulary caffeine: a drug found in some plants, including coffee seeds and tea leaves pesticide: a substance that keeps insects or harmful materials away from a plant alert: awake and paying attention ward off: to keep away something
趣谈英语
Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience
60秒科学
Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience
Scientific American(五)月
Public Hearings on Popular Pesticide Spotlight Safety Concerns Every year, U.S. farmers apply more than 35 million kilograms of the pesticide atrazine on their fields of corn, sugarcane, sorghum and other crops. But a growing body of scientific evide
VOA标准英语2012年(六月)
EU Hopes Pesticide Ban Will Halt Bee Decline The targeted farm chemicals, which will be banned for two years starting this December 1, belong to a class of insecticides called neonicotinoids. They are a type of insect nerve agent that has been widely
VOA标准英语2013年(五月)
ROBERT SIEGEL, HOST: Now some good news, especially for babies around the world. Scientists in the U.S. and India have found an inexpensive treatment for a common infection. It could save hundreds of thousands of newborns each year. The treatment com
2017年NPR美国国家公共电台8月
RACHEL MARTIN, HOST: Go online, walk through any health store or supermarket, and you'll find all kinds of products being sold as probiotics. They're being promoted for all kinds of things - preventing upset stomachs, boosting the immune system, figh
2017年NPR美国国家公共电台12月
DAVID GREENE, HOST: We have been reporting on the rise of some really nasty diseases caused by tick bites - everything from Lyme disease to Rocky Mountain spotted fever. Well, now a new study is shedding light on an old technique to repel ticks that
2018年NPR美国国家公共电台7月
Google and Amazon were quick to put drones to use delivering orders. 谷歌和亚马逊已经开始用无人机送货，反应神速。 But new research suggests delivery is just one small way drones are going to replace humans. The tiny airborne ves
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Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be
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NEW YORK - Amazon.com is working on a way to get customers their goods in 30 minutes or less by drone. The world's largest e-commerce company said it's working on the so-called Prime Air unmanned aircraft project in its research and development labs.
英语新闻
Suicide is the leading cause of death for Chinese people aged 15 to 34, and the fifth biggest killer - after cardiovascular disease, cancer, respiratory disease and accidental death - among all age groups, a report by the Chinese Association for Ment
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Google and Amazon were quick to put drones to use delivering orders. 谷歌和亚马逊已经开始用无人机送货，反应神速。 But new research suggests delivery is just one small way drones are going to replace humans. The tiny airborne ves
英语新闻
Han Changfu said that food security is always a major issue in China, a country with a population of 1.3 billion people. He pledged that authorities will keep the zero-tolerance attitude towards food security issues and will spare no efforts to solve
英语新闻
在讲解被动态的适用范围之前，我们先来复习一下被动态的结构：be+done，即be动词体现时态再加上被执行动作的过去分词。现在，小编分别举一个主动句和一个被动句，你们感受一下主动句和
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