Tourists become perplexed because they dont know street names are posted on the side of bu
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Tourists become perplexed because they dont know street names are posted on the side of buildings, rather than on signs. The underlined part means______.
A．confused
B．explicit
C．positive
D．rational
请帮忙给出正确答案和分析，谢谢！
更新中~-
正确答案：A
词义理解题。原句中perplexed意为“困惑的；茫然不知所措的”，而confused意为“困惑的；混乱的”，两者意思相同，因此选项[A]为答案。explicit意为“明确的；清楚的”；positive意为“(心态)积极的；确定的；肯定的”；rational意为“合理的；有理智的”，均与上下文意思不符，故排除。