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Timoteo has an unusual job — he is a hum...

Timoteo has an unusual job — he is a human traffic _________.

A.sign B.signal C.mark D.symbol

 

B 【解析】 考查名词词义辨析。句意:铁穆特欧有一个不同寻常的工作——人体交通信号灯。A. sign符号;B. signal信号;C. mark记号;D. symbol象征。这里指“交通信号灯”,所以用traffic signal。故选B。
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