A:社情民意反映制度
B:专家咨询制度
C:重大事项社会公示制度
D:社会听证制度
若G为三角形ABC的重心,若∠A=60°,AB→•AC→=2,则|AG→|的最小值是( )
Christmas is my favourite 1. On Christmas, my family 2 my aunt,uncle and cousin to our house. We 3 gifts to each other. I give my cousin a 4 gift. We sing the Christmas 5 together. I think we are very happy.