which one of the following accurately describes field names?（） they must be unique in a database 。 they can only be used once in a view 。 they can only used once on each form 。 they can be used mulriple times on a form&e。
请列举机组在通电状况下无法正常偏航的原因
To enhance the availability of an application running under HACMP， a decision was made to use The application monitoring facility. The application consists of several components and can take several minutes to initialize. The components use socket communication and can be initialized in any order as long as it is a serial order. The customer’s concern is that if the application stop and start scripts are used during application monitoring recovery，it may take an extraordinary length of time to reset all of the application components. What can be done to ensure the best recover time？（） Use a process monitor that restarts the named processes in the original start order.。 Use the defined application start and stop scripts to control the application if there is a failure.。 Use multiple application monitors for this resource group to enable the monitoring of the specific components of the resource group.。 Use application cleanup and restart scripts designed to determine the state of the various components of the application and start only the parts required.。
以下关于SVC支持iSCSI的说明中，错误的是：（） 自SVC5.1版本起支持主机用 iSCSI 访问 SVC；。 支持 ipv4 和 ipv6 的地址。 支持 CHAP 的 iSCSI 安全验证方式。 可将 iSCSI 存储加入到虚拟化存储环境。
L-O-R三通带压施焊时，焊条应选用（） 酸性焊条。 碱性焊条。 合金焊条。 铸铁焊条。
不论采用什么方法评估在建工程，其基本前提条件是（）。
