题目：
主要通过呼吸道传播的病原体是（）
A．肺炎支原体
B．脲原体
C．穿透支原体
D．钩端螺旋体
E．梅毒螺旋体
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A
主要通过呼吸道传播的病原体是（） A．肺炎支原体 B．脲原体 C．穿透支原体 D．钩
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