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
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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.
单项选择题
What is one of the consequences caused by the many claims of household products
A．They are likely to lead to serious environmental problems.
B．Consumers find it difficult to tell the true from the false.
C．They could arouse widespread anger among consumer.
D．Consumers will be tempted to buy products they don't need.
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