个人紧张的产生，除了压力源存在之外，还必须满足的条件有( )。

A．以个人动机和应付压力的能力信息作为补充

B．个人紧张的产生

C．个人感觉到对自己需要和动机的威胁

D．潜在的工作压力有规律可循

E．自己不能对压力源进行有效应付

Although the bulk of industry resources and energies have focused on developing the fastest (11) or slickest (12) , more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas of input devices, (13) processing and virtual 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 (14) as invisible as possible. (15) represents the next evolutionary step for the interface.

A．microprocessor

B．operating systems

C．voice

D．interface