Some hepatitis viruses are spread by fecal-oral______often by food handlers and in crowded, unsanitary conditions.

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问题 Some hepatitis viruses are spread by fecal-oral______often by food handlers and in crowded, unsanitary conditions.

选项 A、contact
B、contamination
C、pollution
D、touch

答案B

解析选项A为“(传染病)接触，接触”；选项B为“污染，污物”；选项C为“污染”，常用于环境污染、大气污染等；选项D为“摸，碰，触觉”。根据题意，此处应填入的词语需含有“污染，污物”之意，故选B。

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医学博士外语

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Some hepatitis viruses are spread by fecal-oral______often by food handlers and in crowded, unsanitary conditions.

医学博士外语

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