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Which of the following can be inferred from the passage about the Native American inhabita

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Which of the following can be inferred from the passage about the Native American inhabitants of Ungava Bay？

A．They were almost all killed by the 1952 epidemic.

B．They were immunologically defenseless against measles.

C．They were the last native people to be struck by a virgin-soil epidemic.

D．They did not come into frequent contact with white Americans until the twentieth century.

E．They had been inoculated against measles.

请帮忙给出正确答案和分析，谢谢！

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  • 正确答案：B
    关于Ungava湾的土著人，哪个可从文中推出?A．“almost all killed”太过分，只有7％死于疾病。B．正确。对麻疹缺乏免疫力。据最后一段叙述可推出，参考上题A选项。C．“the last native people”文中无。D．20世纪前和白人少有联系。无。E．已被接种预防麻疹。无。