Many cities issued a warning of         air pollution for PM-2.5 readings, which became

        Concern of all the people

A．the; the

B．the;/

C．/;a

D．an;a

公民参与民主决策的方式多种多样。下列选项中不属于公民参与民主决策的方式是 [ ]

A．社情民意反映制度

B．专家咨询制度

C．信访举报制度

D．社会公示制度