单项选择题

Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions.
Now, listen to the news.
The fire was brought under control

A．within 20 minutes.
B．within 30 minutes.
C．within 40 minutes.
D．within two hours.
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单项选择题
The percentage of the annual decrease in infant mortality rate since 1990 is
A．6.5.
B．5.85.
C．5.
D．19.
单项选择题
What do we learn from the passage about Paris
A．There are 200 vehicles for every kilometer of roadway.
B．It bas a dense population.
C．There are many museums and palaces.
D．It has many towering buildings.
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