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  3. Although there is no cure for the common cold, doctors believe that vitamins can help prevent them. Many doctors recommend vitam

Although there is no cure for the common cold, doctors believe that vitamins can help prevent them. Many doctors recommend vitam

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问题    Although there is no cure for the common cold, doctors believe that vitamins can help prevent them. Many doctors recommend vitamin C to prevent colds, and some doctors suggest that you take large amounts when you begin to get colds symptoms. Yet it is
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答案prevent colds
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