题目内容

炉底热电偶温度要求不大于()℃。

A. 800℃
B. 750℃
C. 650℃

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为保证变压器冷却效果,风冷却器应()。

A. 经常检查
B. 经常更换风扇电机
C. 定期进行水冲洗
D. 轮流切换

制动盘安装到旋转轴上的偏摆量应小于()。

A. 0.15mm
B. 0.2mm
C. 0.3mm
D. 0.4mm

Your network contains a single Active Directory domain named contoso.com.You have a domain controller named DC1 that runs Windows Server 2003 Service Pack 2 (SP2) that has the DNS Server Windows component installed. You have a member server named Server1 that runs Windows Server 2003 SP2.Server1 fails to update its host (A) record for the contoso.com domain. You need to verify that DNS requests from Server1 are sent to DC1. What should you do?()

A. On Server1,restart the server, press F8, and enable boot logging.
B. On Server1,open the properties of the network adapter and install the Network Monitor Driver.
C. On DC1,open the DNS snap-in and configure debug logging for the DNS Server service.
D. On DC1,open the DNS snap-in and configure event logging for errors and warnings for the DNS Server service.

BG4型正压氧气呼吸器采用先进的“模拟窗”电子报警、测试及压力显示系统,该系统具有如下功能:()。

A. 图示、数字显示及声光报警
B. 高压及膛压气密性检测
C. 定量供氧量检测
D. 气瓶余压报警、缺氧报警

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