单词:modification enzymes
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Students, we come from? To hear this question, I am sure you will say that parents are taken to put us up in the world. Yes ah, one day more than a decade ago, our parents happy with tears and smiles to greet the arrival of the U.S.. But when we came
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Jen: Hello and welcome to 6 Minute English from BBC Learning English. I'm Jen and with me today is Neil. Neil: Hello there. Jen: Todays story is all about allergies. If you have an allergy to something, your body reacts to it in a negative way. Do yo
In defense of science, truth Bi Xiaotian acquired a new habit recently. Every time he opens his web browser, he checks the entry of paraxylene (PX) on Baidu Baike. As one of the participants in correcting the Baidu entry in early April, the 22-year-o
DEAUVILLE, France, Oct. 18 (Xinhua) -- France and Germany pondered over(深思,考虑 ) necessary amendments on Monday about the Lisbon Treaty by 2013 in the hope of better responding to(响应) crises. France and Germany consider it necessary to
AS IT IS 2015-09-14 Living in a Shipping Container 集装箱改装成新住宅 Many people do not earn enough money to buy a house in the San Francisco Bay area. Housing prices in northern California can be very high. So, some young people have begun
But methane is actually odorless, too. 但是甲烷也是无味的。 Well then, what stinks? 那么,什么东西这么臭? The foul smell is usually due to volatile sulfur compounds, such as hydrogen sulfide and methanethiol, or methyl mercaptan
外国学生促进美国的创新 Foreign students earning their doctoral degrees in the United States can help revitalize innovation and economic growth. A new study says the U.S. should make it easier for such students to enter and remain in the co
Science and technology 科学与技术 Policing 治安 The aftershocks of crime 犯罪余震 An idea borrowed from seismology may help to predict criminal activity. 从地震学上获取的灵感或许能预测犯罪行为。 LOS ANGELES is one of th
Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来,口吃可以归咎
Avocado 牛油果 In addition to its flavorful taste and rich and creamy texture, this fruit (yep, it is indeed a fruit!) is loaded with antioxidants and can help you lower your bad cholesterol. Whether you eat it in a salad, spread on toast, or even
A healthy liver plays a key role in relieving digestive issues, such as a sluggish metabolism, gas, bloating, and constipation. It regulates blood sugar levels, which, when out of balance, can cause sugar cravings, fatigue, and fuzzy thinking. 健康的
Heartburn Drugs Linked to Heart Attacks 某些胃药可能增加心肌梗死的风险 The widely used drugs known as proton pump inhibitors, or P.P.I.'s gastric reflux preventives like Prilosec and Prevacid may increase the risk for heart attack, acc
There has been a lot of research done on the significance of food combining when we eat. Many believe that our stomach is designed to only digest food correctly one food type at a time or eating foods together that are compatible with each other. Thi
2010上海世博会:浦东主题馆 Theme Pavilions in PudongLocation: Section B, western side of Expo Axis地理位置:会馆轴线西边B场Floor area: Total area of 80,000 square meters above ground and 40,000 square meters underground占地面
Science and technology. 科技。 Medical implants. 医用植入设备。 A sweet idea. 一个甜美的想法。 Researchers are trying to harness glucose-the body's own fuel-to power implantable gadgets such as pacemakers. 研究人员正试图利用葡