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  3. Karl Von Linne (or Linnaeus, as he is widely known) was a Swedish biologist who devised the system of Latinised scientific names

Karl Von Linne (or Linnaeus, as he is widely known) was a Swedish biologist who devised the system of Latinised scientific names

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问题     Karl Von Linne (or Linnaeus, as he is widely known) was a Swedish biologist who devised the system of Latinised scientific names for living things that biologists use to this day. When he came to (1)_____ people into his system, he put them into a group called Homo—and Linne’s hairless fellow humans are still known biologically as Homo sapiens. (2)_____ the group originally had a second member, Homo troglodytes. It lived in Africa, and the pictures show it to be covered (3)_____ hair.
    Modern (4)_____ are not as generous as Linne in welcoming other species into Man’s lofty (5)_____, and the chimpanzee is now referred to (6)_____ Pan troglodytes. But Pan or Homo, there is no (7)_____ that chimps are humans’ nearest living relatives, and that if the secrets of what makes humanity special are ever to be (8)_____, understanding why chimps are not people, nor people chimps, is a crucial part of the process. That, in turn, means looking at the DNA of the two species, (9)_____ it is here that the (10)_____ must originate.
    One half of the puzzle has been (11)_____ for several years: the human genome was published in 2001. The second has now been added, with the announcement in this week’s Nature (12)_____ the chimpanzee genome has been sequenced as well. For those expecting (13)_____ answers to age-old questions (14)_____, the publication of the chimp genome may be something of an (15)_____. There are no immediately obvious genes-present in one, but not the other-that account for such characteristic human (16)_____ as intelligence or even hairlessness. And (17)_____ there is a gene connected with language, known as FOXP2, it had already been discovered. But although the preliminary comparison of the two genomes (18)_____ by the members of the Chimpanzee Sequencing and Analysis Consortium, the multinational team that generated the sequence, did not (19)_____, any obvious nuggets of genetic gold, it does at least show where to look for (20)_____.

选项 A、him
B、it
C、them
D、her
答案C
解析 本题是一道词汇和语法题，考查代词"them"的正确指代和使用。本句的大意是：虽然初步的比较未能找到任何明显有价值的东西(nuggets)，但是初步的比较的确至少指出到哪里去寻找这些有价值的东西(nuggets)。本题应当选择一个能够替代复数形式名词"nuggets"一词的代词。可见只有选项"them"能够充当本题的正确答案。
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