我国国道干线公路共70条分为三类，以北京为中心，呈扇面状辐射的公路，编号为(　　)，在我国版图内，呈南北走向的公路，编号为(　　)，东西走向的公路，编号为(　　)。

A．1XX，2XX，3XX

B．1XX，3XX，2XX

C．2XX，1XX，3XX

D．3XX，2XX，1XX

With hundreds of millions of electronic transactions taking place daily, businesses and organizations have a p incentive to protect the (66) of the data exchanged in this manner, and to positively ensure the identities of those involved in the (67) . This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying p security (68) deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security. (69) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (70) and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

A．silicon

B．reengineering

C．computer

D．software