如果司机无足够现金支付通行费，通报中队长和当班监控员同意后，可进行欠费处理。
参考答案：对
下列属于生态系统的是（ ）
A．一只大象
B．一群飞鸟
C．一块农田
D．一朵彩云
Nowadays, doing part-time jobs has become a fashion to us students. What’s your opinion?
