单词:physical link layer
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CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
[00:00.00]The worst thing about this is that they don't [00:03.08]see the link between eating junk food and [00:05.94]their ill health either. [00:08.22]They end up going to doctors and trying [00:11.01]different forms of therapy. [00:13.14]What coul
The Importance of Physical Exercise Everyone hopes to live happily in the world. Physical exercise is indispensable to a happy life. There is a famous saying: Life lies on exercise. Although you will not necessarily die without regular physical exerc
There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th
【今日基础词】 Physical 【Transcript】 A: Ive heard some friends say when they get the article, its quite different from what they see on the website advertisement. B: That happens. Without close quality examination, we may encounter fraud,
Physical educationby Richard SidawaySchool days are supposed to be the best days of your life and part of that experience usually involves some strenuous physical activity. I asked some colleagues to give me their recollections of what happened to th
Broadcast: Jan 30 2003 Researchers say there appears to be no link between a substance found in some high-carbohydrate foods and the development of some types of cancer. U.S. and Swedish researchers c
P-MAC packet media access controller PAD packet assembler-disassembler PCB printed circuit board PDS premises distribution system Personal Communications Personal communications provides at least one
FAITH LAPIDUS: This is the VOA Special English program SCIENCE IN THE NEWS. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell about physical exercise. We will tell why exercise is important, and some of the popular ways to get in
By VOA News 12 January 2008 The husband of Pakistan's assassinated former prime minister and opposition leader Benazir Bhutto says he thinks recent terrorist attacks in Pakistan are part of an attempt to rig upcoming parliamentary elections. In an in
By Carol Pearson Washington 29 May 2008 The U.S. Centers for Disease Control and Prevention has recommends that adults ages 60 and older get vaccinated against shingles. The painful blisters of the disease, caused by the same virus as chickenpox,can
Todd: So, Monica, you are actually a trained physical education teacher Monica: Yes, that's right. Todd: So, we often hear about how kids today are not fit, and they don't exercise enough. Do you think that's true? Monica: I think it is true, yes. I
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
The same technology used to make prosthetic limbs is now being used to clone some of the world's earliest manuscripts from Mesopotamia, an area near modern-day Iraq. When the US invaded Iraq in 2003, thousands of artifacts were stolen from museums in
Profanity Bleeps Physical Pain Holy @$#%! According to neuroscientists from Britains Keele University, dropping the f-bomb can actually relieve physical pain. In the upcoming August 5th issue of the journal NeuroReport, the researchers say swearing
HEALTH REPORT - Study Shows No Link Between Cell Phones and Rare Tumor By Cynthia Kirk Broadcast: Wednesday, September 07, 2005 I'm Barbara Klein with the VOA Special English Health Report. New resear
By Jessica Berman Washington 06 December 2007 Children who are overweight are at significant risk of developing heart disease as adults. That's the conclusion of two studies published in this week's New England Journal of Medicine , which predicts wh
If you don't exercise regularly(有规律的), a sudden bout of energetic activity can trigger a heart attack, and may even kill you, according to a new study published in JAMA, the journal of the American Medical Association. It sounds like the
A: Good morning, how are you doing today? B: I have been feeling pretty good, Dr. Smith. A: So, I can see by your chart that you are here for your annual physical. B: Yes, I am playing on the tennis team this year, and they are requiring me to get a