扩散型相变
When resetting a Catalyst Express switch to factory default settings， which three options are available from the Software Recovery window？（） ["Boot to a password recovery window","Boot with the factory default image","Erase the system configuration and boot with the factory default IOS image","Erase the system configuration and boot from a TFTP-supplied IOS image","Erase the System Configuratio"]
待检修工作票（），应向调度值班人员汇极：检修（）已全部结束，申请检修的（）恢复运行。
露天爆破发现残余爆破器材应（）。 ["当班回收，下班再用","收集上缴，集中销毁","个人回收，自行处理"]
A computer is connected to the network through a NIC， which has a unique assignment that is called the Ethernet MAC address. Which layer of the OSI model does the MAC address use to communicate with the network？（） [" network"," application"," session"," data link"]
1994年12月美国NIST正式办不了数字签名标准DSS，它是在（）和（）的基础上设计的。
