填空题

In the United States influenza is one of the ten principle causes of death.

【参考答案】

Y
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填空题
The author’s primary purpose in this passage is to suggest people receive flu vaccines.
问答题
心理问题往往是导致疾病的诱因;2.分析人们产生心理问题的原因(可从失业、压力过重、缺少支持、缺乏人际关系等方面加以分析);3.你认为人们如何保持心理健康。How to Keep Psychologically Healthy
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