3级
单选题According to Paragraph 1，the tamarin story can be retold chronologically as follows：
Ⅰ．Tamarins were declared extinct．
Ⅱ．No one saw a tamarin in the wild．
Ⅲ．Tamarins used to live in forests in southern Brazil．
Ⅳ．The researchers have been doing everything they can to save tamarins．V．Some researchers found by chance a small set of tamarins．
Ⅰ．Tamarins were declared extinct．
Ⅱ．No one saw a tamarin in the wild．
Ⅲ．Tamarins used to live in forests in southern Brazil．
Ⅳ．The researchers have been doing everything they can to save tamarins．V．Some researchers found by chance a small set of tamarins．
参考答案：B进入在线模考
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