道路危险货物运输车辆应具有（）等安全设施。
A、排气管火花熄灭器
B、电源总开关
C、导静电拖地带
D、消防器材
参考答案：A, B, C, D
English is a language shared by several diverse cultures ,each of____ uses it somewhat differently .
A．which
B．what
C．them
D．those
对于呼吸、心跳骤停的病人,应立即送往医院。
