单词：primary high polymer
单词：primary high polymer 相关文章
TRANSCRIPT OF THE PRIME MINSTER'S FIRST AUDIO BROADCAST ON THE NUMBER 10 WEBSITE. 11 FEBRUARY 2000 Hello and welcome to what I am sure will be the first of many direct broadcasts from the Downing Street website. I'm sitting here at my desk in Downin
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Eight new measures introduced to ease the burden on primary and middle school students in Beijing have been rolled out as the spring semester began. According to the policy, students in Beijing's primary and middle schools will have much less homewor
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
Scientific American(四)月
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
Scientific American(三)月
Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
Scientific American(一)月
Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Scientific American(九)月
Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
Scientific American(二)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
Scientific American(四)月
Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
2016年VOA慢速英语(九)月
Sudan School Becomes Target of Aerial Attacks 苏丹学校成为空袭的目标 KOWALIP, SUDAN The school dropout rate is at an all-time high in Sudan's South Kordofan state because many schools have been destroyed during the three-year civil war bet
VOA标准英语2014年(十二月)
1. elementary school，小学。 小学也可用英语primary school表示。 eg:elementary表示基本的，初级的； primary表示最初的，主要的。 2. junior middle school，初中。初中也可说成junior high school。 eg:It happened
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More content regarding traditional culture will be included in textbooks for primary and middle school students to nurture their love for China's cultural legacy, reported Beijing Times. 据《京华时报》报道，中小学教材将包含更多传统
英语新闻
为何女生多时男生英语成绩差 Boys' English gradesare up to a tenth worse when high numbers of girls are in the class with them， though girls' grades are unaffected。 当班上女生人数较多时，男生的英语成绩要下降10%，而
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By Cathy Majtenyi Kampala, Uganda 12 June 2007 Earlier this year, Uganda launched its Universal Secondary Education program to enable more students from low-income and rural families to get a high school education. Cathy Majtenyi files this report fo
2007年VOA标准英语（六月）
BEIJING, Jan. 5 (Xinhua) -- China plans to build enough school canteens to provide safe and nutritional meals for all primary and junior high school students in impoverished rural regions by 2015. According to a circular, jointly released Saturday by
英语新闻
China's State Council recently encouraged local governments to experiment with giving primary and high school students a spring and autumn break. Students in China currently have only two breaks - usually two months in summer and one month in winter
英闻天下
Girls make boys worse at English, says new study 研究发现：女生是男生糟糕英语成绩的元凶 Boys' English grades are up to a tenth worse when high numbers of girls are in the class with them, though girls' grades are unaffected. 研究发
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The new school year begins again this week for most schools. Most primary schools start again tomorrow although the Ministry of Education website says the starting date can be any week-day from 30th January to 7th February. February 6th is a national
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