参考答案I解析:【解析】[I]。[I]段第1句提到，实际上所有的专家们都同意，“为服务付费”系统——医生是通过医疗保健的数量而不是质量或者效果来获取酬劳——是医保费用如此之高的主要原因。本题是对第一个破折号后内容的同义转述，题中的0ne main factor that对应文中的a primary reason that．doctors are compensated for the amount of．．．则对应文中的doctors are rewarded for the quantity of．…
A．It represents the rapid technological advance in people’s daily life． B．Many of its central features are no different from those of the 1920s． C．It has been transformed beyond recognition． D．Many of its functions have changed greatly．