单项选择题

Which of the following symptoms will distinguish the flu from a cold

A．A stuffy nose.
B．A high temperature.
C．A sore throat.
D．A dry cough.
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单项选择题
We learn from the passage that ______.
A．one doesn't need to take any medicine if he has a cold or the flu
B．aspirin should not be included in over-the-counter medicines for the flu
C．delayed treatment of the flu will harm the liver and central nervous system
D．over-the-counter drugs can be taken to ease the misery caused by a cold or the flu
单项选择题
According to the author, knowing the cause of the misery will help ______.
A．shorten the duration of the illness
B．the patient buy medicine over the counter
C．the patient obtain cheaper prescription drugs
D．prevent people from catching colds and the flu
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