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题目内容
（桂林理工大学大学英语4）
(单选题)According to this passage, the Roman way of communication depended very much upon ______(本题2.0分)
A.fine weather
B.high tower
C.the spelling system
D.arm movements
A.fine weather
B.high tower
C.the spelling system
D.arm movements
参考答案
