在一幅地图上量得甲、乙两地的距离是6cm，已知甲、乙两地的实际距离是120km，这幅地图的比例尺是______．

According to media reports, the London stadium is        other Olympic stadiums in terms of steel used.

A．as 75% light as

B．75% lighter as

C．75% lighter than

D．as light as 75%