M: Hello. I’m from CCTV. Can I ask you some questions
W: Sure, go ahead.
M: What are you feeling today
W: Happy and excited. You see, everybody is enjoying our National Day as well as the Mid Autumn Festival. It’s quite special.
M: Yes, China is developing very rapidly.
W: That’s true. In July, we won its bid for the 2008 Summer Olympics. In August, we made the 21st University Games the best in its history.
M: You know quite a lot.
W: Of course. And in September, news came that our country would become a member of WTO. Still to come this month is the economic APEC summit in Shanghai.
M: So many things for us to be proud of. Besides, I should say our men’s football team has made for the World Cup final in 2002. That’s inspiring news.
M: Hello. I’m from CCTV. Can I ask you some questions
W: Sure, go ahead.
M: What are you feeling today
W: Happy and excited. You see, everybody is enjoying our National Day as well as the Mid Autumn Festival. It’s quite special.
M: Yes, China is developing very rapidly.
W: That’s true. In July, we won its bid for the 2008 Summer Olympics. In August, we made the 21st University Games the best in its history.
M: You know quite a lot.
W: Of course. And in September, news came that our country would become a member of WTO. Still to come this month is the economic APEC summit in Shanghai.
M: So many things for us to be proud of. Besides, I should say our men’s football team has made for the World Cup final in 2002. That’s inspiring news.
| There are some earth phenomena you can
count on, but the magnetic field, someday is not of them. It fluctuates in
strength, drifts from its axis, and every few 100, 000 years undergo a dramatic
polarity reversal-a period when north pole becomes south pole and south pole
becomes north pole. But how is the field generated, and why is it so
unstable Groundbreaking research by two French geophysicists promises to shed some light on the mystery. Using 80 meters of deep sea sediment core, they have obtained measurements of magnetic-field intensity that span 11 polarity reversals and four million years. The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. Although the strength of the magnetic field varies irregularly during the shout term, there seems to be an inevitable long term decline preceding each polarity reversal. A. Polarity Reversal: A Fantastic Phenomenon of Nature B. Measurement of the Earth’s Magnetic-Field Intensity C. Formation of the Two Poles of the Earth D. A New Approach to the Study of Geophysics 我来回答: 提交
|
