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【单选题】
流脑的主要传播途径是( )A.
经食物或污染水源传播
B.
呼吸道飞沫直接传播
C.
通过吸血节肢动物传播
D.
日常生活密切接触传播
E.
医院内传播
拍照语音搜题，微信中搜索"皮皮学"使用
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