GMAT
A pair of architects in Britain, who say that giant arches, bridges, and walls made of artificial bone could be easier to design and build than conventional structures, and they have already designed a number of structures, which includes a bridge, to show how their idea would work.
A pair of architects in Britain, who say that giant arches, bridges, and walls made of artificial bone could be easier to design and build than conventional structures, have already designed a number of structures, including a bridge, to show how their idea would work.
题目基本信息