Although the bulk of industry resources and energies have focused on developing the fastest (1) or slickest (2) more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas of input devices, (3) processing and vitual reality could lead to fundamental changes in the way human and computer interact. The technological battlefield of the future will be adding layers between the user and the raw machine to make the (4) as invisible as possible. (5) represents the next evolutionary step for the interface.

2（）

A．message digests

B．application software

C．operating systems

D．authentication codes

习 * * * * 在2013年1月22日在中纪委全会上说，从严治党，惩治这一手决不能

放松,要坚持“老虎”、“苍蝇”一起打。这蕴含的哲学道理是

①主要矛盾和次要矛盾是相互影响的    ②矛盾的主要方面和次要方面相互影响

③要坚持两点论和重点论相统一的方法  ④认识事物要注重把握矛盾的主要方面

A．①③

B．①④

C．②③

D．②④