The U. S. government has recently
helped people learn more about the dangers of earthquakes by publishing a map.
This map shows the chances of an earthquake in each part of the country. The
areas of the map where earthquakes are most likely to occur are called
earthquake "belt". The government is. spending a great deal money and is
working hard to help discover the answer to these two questions: ① Can we
predict earthquakes ② Can we control earthquakes To answer the first question, scientists are looking very closely at the most active fault (断层)systems in the country, such as the San Andreas fault in California. A fault is break between two sections of the earth’s surface. These breaks between sections are the place where earthquake occurs. Scientists look at the faults for changes that might show that an earthquake was ab A. maps that show where earthquakes are likely to occur B. zones with a high probability of earthquakes C. breaks between two sections of the earth’s surface D. the two layers of earth along a fault [单项选择]How long has the company started its business
A. 80 years. B. 8 years. C. 18 years. D. 102 years. [单项选择]What do you think of the man has to do
A. He has to look carefully. B. He has to go to school. C. He has to go to see a doctor. 我来回答: 提交
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