A.進(jìn)路排通但未鎖閉 B.進(jìn)路有車占用 C.進(jìn)路排通且鎖閉 D.進(jìn)路未排通
A.30s B.2min C.3min D.5min
A.黃燈 B.紅燈 C.綠燈 D.滅燈