在流感流行季节前接种和流感病毒匹配的流感疫苗可预防流感。
查看答案
根据模块化和复用的原则,设计嵌入式微控制器系统时,需要设计哪些电路?
在直接通信方式中,系统提供的发送原语是()。
A. send(receiver,message)
B. send(sender,message)
C. send(sender,receiver)
D. send(receiver,sender)
()是描述不同应力状态下变形体内点由弹性状态进入塑性状态所遵守的条件
A. 抵抗性
B. 塑性
C. 韧性
D. 屈服准则
You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003, and all client computers run Windows XP Professional. You create a shared folder named TestKing Docs on a member server named TestKing3. TestKing Docs will store project documents. You need to ensure that users can access previous version of the documents in TestKing Docs. What should you do?()
A. Modify the Offline Settings option for TestKing Docs to make all files available offline.
B. Configure shadow copies of the volume containing TestKing Docs.
C. Use Task Scheduler to create a job that uses the Copy command to copy all changed documents to another folder every day.
D. Use the Backup utility to schedule a backup of all changed documents every hou