【托福阅读题型：perplexed词汇题】托福阅读中词汇题是重要题型之一。根据托福阅读题型不同来进行专项练习，是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

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　　托福阅读词汇题：perplexed

　　【Paragraph 1】To South Americans, robins are birds that fly north every spring. To North Americans, the robins　simply vacation in the south each winter. Furthermore, they fly to very specific places in South America and will often　come back to the same trees in North American yards the following spring. The question is not why they would leave the　cold of winter so much as how they find their way around. The question perplexed people for years, until, in the 1950s, a　German scientist named Gustave Kramer provided some answers and, in the process, raised new questions.　　(Orientation and Navigation)

　　The word “perplexed” in the passage is closest in meaning to

　　○ defeated

　　○ interested

　　○ puzzled

　　○ occupied

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