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题目内容
（桂林理工大学大学英语4）
(单选题)Which of the following may be the best title for this passage? ______(本题2.0分)
A.Shields and Drums
B.Audio and Visible Signs
C.Ways of Sending Messages over History
D.Messages in Different Countries
A.Shields and Drums
B.Audio and Visible Signs
C.Ways of Sending Messages over History
D.Messages in Different Countries
参考答案