静止电荷产生的电场，称之为（）场。它的特点是有散无旋场，不随时间变化。
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Blog是一种支持多人协作的写作工具，它允许用户自由地创造和编辑网页内容。
A. 正确
B. 错误
一般认为风心病与风湿活动反复发作有关，而风湿活动主要与下列哪项有关（）
A. 病毒感染
B. 肺炎球菌感染
C. 金黄色葡萄球菌感染
D. 链球菌感染和病毒感染
E. 金黄色葡萄球菌感染和病毒感染
纸机流送设备的匀整元件有排栅导流片，阶梯扩散器，匀浆辊，管束等形式。其中应用于水力流浆箱匀整元件有（）。
You are the network administrator for . All network servers run Windows Server 2003. The network includes a file server named TestKing17. TestKing17 contains a single disk for system files and two SCSI hard disks that comprise a 72-GB mirrored volume with 65 GB of read-only data. Users connect to this data by using shortcuts on their desktops. TestKing17 is scheduled for replacement. You have a scheduled maintenance window to complete this task. Before the maintainance window, you build a new server. You need to bring the new server online with current data and re-establish redundancy as quickly as possible. You must also ensure that the desktop shortcuts will continue to functions. What should you do?（）
A. Name the new server TestKing20. Create a new mirrored volume by using two 72-GB disks. Connect TestKing20 to the network and copy the data from TestKing17. When copying is complete, shut down the old TestKing17.
B. Name the new server TestKing17. Move both disks from the old TestKing17 to the new TestKing17. Scan the disks for changes.Connect the new TestKing17 to the network.
C. Name the new server TestKing17. Break the mirror on the old TestKing17. Move one of the disks from the old TestKing17 to the new TestKing17. Scan the disk for changes. Initialize the disk. Select the spare disk and create the mirror. Connect the new TestKing17 to the network.
D. Name the new server TestKing17. Remove one of the disks in the mirror from the old TestKing17. Move the disk to the new TestKing17. Scan the disk for changes. Import the disk. Shut down the old TestKing17 and connect the new TestKing17 to the network.
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