扩声系统的交流电源容量一般为终期扩声设备耗电容量的1.5～2倍。( )
参考答案：对
The drivers on the highway have to stop because the thick fog makes ____difficult to see.
A,them B,it C,that D,this
法制部门是公安机关内部执法监督工作的领导部门。( )
