单项选择题

How far is the second floor window from the ground

A．About 12 feet.
B．About 6 feet.
C．About the height of an average man.
D．Nearly 10 feet.
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单项选择题
Which of the following should not be used when trying to escape a fire
A．windows.
B．elevators.
C．fire escapes.
D．stairways.
单项选择题
According to the passage, a window is ______.
A．the only way of escaping a fire
B．the best place if you want to get out
C．one of the possible ways to escape a fire
D．safer than any other ways of escaping a fire
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