单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Getting another ticket at the door.
B．Waiting for the man at the door.
C．Exchanging the ticket for a better one.
D．Trying to sell the ticket.
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单项选择题
The author mentions all the following as ways of disease prevention EXCEPT _____.
A．better diet
B．increased exercise
C．reduction on smoking
D．higher survival rate for cancer
单项选择题
Early cancer screening can help reduce significantly _____.
A．the death rates for all chronic diseases
B．the kinds of cancer attacking people
C．the cancer incidence rate
D．cancer death rate
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