【单选题】【消耗次数：1】
流行性乙型脑炎是由乙脑病毒引起的急性中枢神经系统传染病，是通过哪种途径传播的
①
空气飞沫
②
饮食
③
虫媒
④
垂直传播
参考答案：
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①
How do you do?
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How are you?
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Fine，thank you.
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