B:②③④⑤
A:①②③⑤
C:①③④⑤
D:①②③④⑤
玲玲从湖南长沙到宁德旅游,下列哪组图对她的帮助最大?( )
已知1,x,9成等比数列,则实数x=____ .
It was messy so we cleaned the table ________ ourselves.