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other in order, can signal an approaching storm. But don’t take our
word for it; see for yourself.
33.This passage main1y tells us about how__________.
A. to become a meteorologist
B. to keep an eye on the weather
C. to be an assistant to a meteorologist
D. to change water vapor to liquid water
34.According to the passage,an ordinary person might do as well as a
meteorologist in weather forecast_____________.
A. with the help of the high-speed computers
B. through a complex process of calculation
C. with some simple practice looking up at the sky
D. consulting a weather station
35.Meteorologists make their weather forecast__________.
A. by collecting data from all over the world
B. by putting this date into powerfu1, high·speed computers
C. by ca1culating and ana1yzirig this data
D. all above
36.Your advantage in weather forecasts is that____________.
A. you have more powerful computers at home
B. your brain works as well as a high-speed computer
C. you observe the sky and obtain your data directly
D. meteorologists give their data to you as soon as they get them
Questions 37 to 40 are based on the following passage:
Security and commodity exchanges are trading posts where people meet
who wish to buy or sell. The exchanges themselves do no trading;they
merely provide a place where prospective buyers and sellers can meet and
conduct their business.
Wall Street, although the best known, is not the only home of
exchanges in the United States. There are cotton exchanges in New Orleans
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