两电阻R1、R2的电流I和电压U的关系如图所示,可知两电阻R1:R2等于( )
A:1:3
B:3:1
C:1: 3
D:3 :1
— I am going to Millie's birthday party this evening, Mum.
— , and remember to come back before 10.00 p.m.
①体现政府求真务实的工作作风
②为群众排忧解难提供了更好渠道
③增强了政府决策的公众参与度
④目的为了维护和树立政府的权威