题目内容

数字通信系统与模拟通信系统相比突出优点是（）。

A. 可降低甚至避免噪声积累
B. 信号连续
C. 系统没有干扰
D. 以上都不对

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在不同的球磨机粉磨系统中使用助磨剂的效果是否一样？

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轮对是车辆走行部分中最重要的部分之一，它由（）和（）组成。

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消弧线圈成套装置主要附件阻尼电阻及其组件巡视内容包括（）。

A. 设备外观应完好，无锈蚀或掉漆
B. 底座、构架应支撑牢固，无倾斜或变形
C. 一次引线接触良好，阻尼电阻无过热、鼓包、烧伤
D. 阻尼电阻箱配置有散热风机时，风机应能正常启动

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You are the network administrator for your company. Your network consists of a single Active Directory domain. All network servers run Windows Server 2003. Each domain controller contains one disk that is configured with both the system partition and the boot partition. Every day, you use custom software to perform a full backup of user profiles and user data. The custom backup software provides a bootable floppy disk that includes the drivers for the backup media. Every Sunday, you run the Automated System Recovery (ASR) wizard on your domain controllers in conjunction with removable backup media. Data is backed up in a file named Backup1.bkf. One Monday morning, you install a new application on a domain controller named DC1. When you restart DC1, you receive the following error message: "NTLDR is missing. Press any key to restart." You need to bring DC1 back online as quickly as possible. What should you do?（）

A. Restart DC1 by using the installation CD-ROReinstall the operating system and restore the contents of the latest full backup by using the Restore wizard. Restart DC1.
B. Restart DC1 by using the installation CD-RORestore the contents of Backup1.bkf by using the ASR disk. Restart DC1.
C. Restart DC1 by using the bootable floppy disk. Copy the contents of Backup1.bkf from the backup media to C:\winnt. Restart DC1.
D. Restart DC1 by using the bootable floppy disk. Copy the contents of the ASR disk to C:\. Restart DC1.

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数字通信系统与模拟通信系统相比突出优点是（）。

A. 可降低甚至避免噪声积累 B. 信号连续 C. 系统没有干扰 D. 以上都不对

在不同的球磨机粉磨系统中使用助磨剂的效果是否一样？

轮对是车辆走行部分中最重要的部分之一，它由（）和（）组成。

消弧线圈成套装置主要附件阻尼电阻及其组件巡视内容包括（）。

A. 可降低甚至避免噪声积累
B. 信号连续
C. 系统没有干扰
D. 以上都不对