Colds are caused by exposure to severe weather. Only the cold-sufferer needs frequent hand-washing.

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问题 Colds are caused by exposure to severe weather.
Only the cold-sufferer needs frequent hand-washing.

选项 A、Right
B、Wrong
C、Not mentioned

答案B

解析不仅感冒者，全家人都应勤洗手。

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职称英语卫生类C级

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