单词:ultrasonic blood velocity recording method
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[00:03.84]第四部分 在泌尿科门诊 [00:07.68]1.How long has this been going on? [00:21.00]这种情况有多久了? [00:34.32]2.Does it hurt when you pass water? [00:47.95]小便时有痛感吗? [01:01.57]3.How often do you usually pass water? [01:12.15]你通常每天小便
Short-term Memory 短时记忆 There are two kinds of memory: short-term and long-term. Information in long-term memory can be recalled at a later time when it is needed. The information may be kept for days or weeks. Sometimes information in the long-t
Short-term Memory There are two kinds of memory: short-term and long-term. Information in long-term memory can be recalled at a later time when it is needed. The information may be kept for days or weeks. Sometimes information in the long-term memory
Artificial Intelligence Used to Track World's Wildlife Scientists have long struggled with how to measure the effects of climate change on wildlife. This is especially true for birds flying in and out of coastal areas bordering the Arctic Ocean. In t
Here's the key part. 接下来是关键的部分。 The solution nearest the wall spins faster than the solution closer to the middle. 离试管壁最近的溶液,要比中间的溶液旋转得更快。 That difference in velocity creates sheer str
1. About how many blood donations are needed every day in the United States? A. 14,000 B. 24,000 C. 40,000 2.Approximately how many people donate blood every year? A. 92,000 B. 920,000 C. 9,200,000 3. According to the announcement, some people do not
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling
By Robert Raffaele Washington, DC 08 February 2008 American medical researchers say they are stunned by the results of a major government study on diabetes and heart disease. They hoped to prove that a long-trusted form of treatment for lowering blo
The surgeon was a pioneer in open heart surgery, artificial hearts and heart transplants. He worked up until his death this month in Houston, at age 99. Transcript of radio broadcast: 22 July 2008 This is the VOA Special English Health Report. Micha
THIS IS AMERICA - Some American Indian Tribes Recording Faster Growth Than Rest of US FAITH LAPIDUS: Welcome to THIS IS AMERICA in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. This week on our program, we lear
Scientists are reporting a new way to identify when a heart transplant recipient is starting to reject the new organ. The new technique could help doctors ensure the success of more transplants. The human immune system is programmed to reject foreign
How do you attract a mate? If youre a male mouse, you take the Frank Sinatra approachyou sing. Scientists have known about crooning male mice for years. And past experiments showed that if you leave male mice alone with an unconscious female or even
As well as the school, the cave houses eighteen families, together with their livestock. These could be the only cave-dwelling cows on earth. With schoolwork over, its playtime at last. In Southern China, caves arent just used for shelter; they can b
Vibrating gloves will soon replace the white cane to help blind people see their surroundings. 不久的将来,振动手套将取代盲杖帮助盲人看见周围的环境。 This is the prediction of a British team who has developed a prototype gl
It's hard to teach a robot to sew. 教机器人缝纫是非常困难的。 Robots are good at handling materials that are rigid and easy to lift, cut and maneuver. 机器人擅长处理易于拿起、剪切、调转的硬质材料。 But it's a diffe
英语特殊结构的句型比较固定,在纷杂的英语句子中找出一些普遍性和代表性的规律,对理解或翻译颇有裨益。在尊重汉语习惯表达方式的前提下,如何将英语特殊结构译成准确的汉语,是提
At least 120 Kenyans have been killed in a fire at a fuel pipeline in a Nairobi slum. Witnesses said residents had been collecting fuel as it leaked from the pipeline into nearby open sewers. The Kenyan Prime Minister Raila Odinga told the BBC the le