问题
选择题
But often the drivers just go by, taking the human traffic for granted.
A.sign
B.symbol
C.signal
D.mark
答案
答案:C
题目分析:考查名词:A. sign标志,B. symbo象征,l C. signal信号, D. mark记号,句意:但是经常司机就是从旁边经过,对人类的交通信号不以为然。选C。