Do you have any idea of how many gold medals China won in the 16th Asian Games, ______ was hosted in Guangzhou?

A．as

B．whose

C．that

D．which

相对指数法的优点是以企业的某一年为基年，可以用来评价企业测评年的企业信息化指数，了解企业自身纵向的企业信息化水平的发展，也可以用来比较不同企业的信息化水平。