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问题 单项选择题

为了使连接既有安装拆卸的灵活性，又有可靠的密封性，管道与阀门、管道与管道、管道与设备的连接，常采用( )。

A．螺纹连接

B．法兰连接

C．焊接

D．承插连接

答案

参考答案：B

多项选择题

示教作业通常按（）的程序组织实施。

A、作业计划

B、作业准备

C、作业实施

D、作业讲评

E、作业研讨
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单项选择题

With hundreds of millions of electronic (161) taking place daily, businesses and organizations have a p incentive to protect the (162) of the data exchanged in this manner, and to positively ensure the (163) of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying p security mechanisms 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 (164 ) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (165 ) 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．operation

B．completeness

C．integrity

D．interchange
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