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Influenza(流感)Influenza has been with us a long time. According to some Greek writers___1___ medical history, the outbreak of 412 B. C. was of influenza. The same has been suggested of the sickness___ 2___swept through the Greek army attacking Syracu
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DreamsEveryone can dream. Indeed,everyone does dream. Those who_________(51)that they never dream atall actually dream_________(52)as frequently as the rest of us,______(53)they may not remember anything about it. Even those of us who are perfectly_