问题

After some experiments, the doctors fo

After some experiments, the doctors found that ______.

A the influenza could be cured like other types of influenza
B the influenza must be treated in a special way
C the influenza did not have to be treated
D the influenza could not be cured by any known medicine

参考答案

参考解析：

答案为D。根据第三段最后一句，This then，was something new：a new influenza virus against which the people of the world had no ready help whatsoever 作出该项选择。其他选项在文章中根本未提。

分类：其他

The doctor suggested that the patient（）in hospital for another week.AstayedBstayingCstayDto stay

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In the experiment, the East Asian volunteers had difficulties distinguishing between fear and surprise because ________. Several deca...

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5、If the doctor had been available, the

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