What is the passage mainly about？
A. Making advertisements.
B. Learning one's mother tongue.
C. Learning foreign languages.
D. Introducing TV programs.
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Which one of the following is NOT true according to paragraph 2？
A. The reasons leading to flood is discussed in this paragraph.
B. Less deaths are caused by floods in the last few decades.
C. Better warning systems helped in reducing the life losses in floods.
D. The improvement of technologies greatly reduce the economic losses caused by floods.
Which of the following is NOT part of the trip？
A. Sleeping outside on the ground.
B. Spending time in a private cabin.
C. Boating on the river.
D. Enjoying excellent food.
A．It is similar to real meat in appearance but not in taste.B．It is similar to real me
A. It is similar to real meat in appearance but not in taste.
B. It is similar to real meat neither in appearance nor in taste.
C. It is similar to real meat both in appearance and in taste.
D. It is similar to real meat in taste, but not in appearance.
What is Dr. Martinson's most probable identity according to the passage？
A well-known professor from the K. C. Innovation University.
B. The next president of K. C. Innovation University after the author retires from his position.
C. The last president before the author took his current position as the new president.
D. The vice-president of the university who is working under the author now.
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