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本测验设计4个问题,用以评价您对乙型肝炎知识的了解程度,请您选择一个正确答案:1.世界上有多少乙型肝炎病毒携带者:a.3百万b.3千万c.3亿2.哪一项是乙型肝炎病毒的传染途径:
This quiz design four questions to evaluate your knowledge of hepatitis B, please choose a correct answer: 1. How many hepatitis B virus carriers in the world: a.3 million b.3 million c3 million 2. Which one is the transmission of hepatitis B virus: