右图为成立于1928年的上海著名食品企业“凯司令”的商标。结合史实推测与它的成立有关的是

A．开放上海浦东

B．辛亥革命的胜利

C．黄埔军校的建立

D．北伐战争的完成

Unlike competitive running , race walkers must always keep some portion of their feet in contact with the ground.

A．run

B．runner

C．runners

D．running race