o–cong cu san suat do dung , do trang suc deu=.do dong gan nhu thay the–..? a,thoi van hoa dong son-phat trien hon truoc-do d

o……..cong cu san suat do dung , do trang suc deu………….do dong gan nhu thay the……….?
a,thoi van hoa dong son-phat trien hon truoc-do da
b,thoi van hoa hoa binh-phong phu-do bang tre,go
c,thoi van hoa sa huynh-phat tryen hon truoc-do gom
d,thoi van hoa dong son-phat trien-do sat