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问题 单项选择题

为了适应新时期税收工作的需要，国家税务总局将2002年确定为税务系统的（）。

A、"队伍建设年"

B、"依法治税年"

C、"科技加管理年"

D、"教育培训年"

答案

参考答案：C

单项选择题

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．operations

B．homogeneities

C．creations

D．mechanisms
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单项选择题

阶跃光纤中的传输模式是靠光射线在纤芯和包层的界面上（）而使能量集中在芯子之中传输。

A.半反射

B.全反射

C.全折射

D.半折射
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