An HACMP setting timer may used to allow：（）
A、 The setting or fallback of a cluster custom resource group
B、 The cluster time to stabilize before starting a custom resource group
C、 A priority node time to acquire custom resource group at cluster start
D、 A fallover node time to process custom resource states to be monitored
Automatic Updates should be performed to ensure that the computer has the latest：（）
A、anti-virus definition file.
B、drivers installed.
C、release of the operating system.
D、security and software patches.
鹅口疮口腔黏膜特征（）
A、口腔黏膜充血水肿呈红绒状
B、口腔黏膜可见大小不等的溃疡
C、口腔黏膜出现奶凝块状物
D、口腔黏膜出现黄白色小水疱
E、咽及软腭黏膜出现黄白色小水疱
Which database does WX Central Management System (WX CMS) software use to store historical data?（）
A、Oracle
B、MySQL
C、Sybase
D、Microsoft Access
After creating a WebSphere Commerce instance， an administrator attempts to log on to the WebSphere Commerce Administration Console. The browser reports a "500 Internal Server Error". What could cause this to occur？（）
A、The web server was not started
B、The Payments Engine was not started
C、The WebSphere Commerce Payments instance was not started
D、The WebSphere Commerce application server was not started
E、The Configuration Manager service was not started
永真式的否定是（ ）。
A、永真式
B、永假式
C、可满足式子
D、A，B，C均有可能
