Not all the students obey the rules. Which of the following statement has the same meaning as it. 

A．None of the students obey the rules.

B．All the students don’t obey the rules.

C．No students obey the rules

D．All of the above

（）地方各级人民政府公安机关对本行政区域内的消防工作实施监督管理。

A、省级以上

B、地级以上

C、县级以上

D、乡级以上