2. 外语
  3. Examination on virus from the Vietnamese woman implied that ______. The study of virus isolated from a 23-year-old woman verifi

Examination on virus from the Vietnamese woman implied that ______. The study of virus isolated from a 23-year-old woman verifi

admin2009-09-12  31
问题 Examination on virus from the Vietnamese woman implied that ______.
The study of virus isolated from a 23-year-old woman verifies that ______.
选项 A、virus genetic material from this woman contains human influenza genes
B、the origin of the virus is from bird
C、the woman’s death is caused by her brother
D、the virus can be passed from one person to another
答案B
解析 本题问“从那位23岁女子身上提取的病毒研究结果表明了什么?”第一段中最后一句提到“Virus genetic material from this woman，as for the other case in this cluster，is of avian origin and contains，no human influenza genes”。也就是说，对采自因感染禽流感病毒而死亡女子的病毒材料的研究显示，此病毒来源于禽类，而且不包含人类流感的基因。由此可知[B]“此病毒来源于禽类”正确。[A]“从那位23岁女于身上提取的病毒物质包括人类流感基因”；文中已经提到了“没有人类的基因”。[C]“此女于的无是由她哥哥引起的”。后文中提到了“the H5N1 avian flu virus showed no human transmission”，肯定了人与人之间不会有传染。[D]“此病毒可以从一个人传给另一个人”。后文中提到人和人之间传播的条件是病毒进行变异。
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