单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．4.
B．40.
C．14.
D．None.
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单项选择题
A．The room is stuffy.B．Too many people are smoking.C．The windows are closed.D．She isn’t feeling well.
A．The room is stuffy.
B．Too many people are smoking.
C．The windows are closed.
D．She isn’t feeling well.
填空题
According to the passage, a cigarette can raise a smoker’s heart rate by ______ a minute.
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