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力率控制：要求控制用电力率≥92%，必须随时注意力率因素表的变化，结合公司用电负荷的变化投入或退出补偿电容（）

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You are a network administrator for your company. The network consists of a single Active Directory domain. All servers run Windows Server 2003. Client computers run Windows XP Professional， Windows 2000 Professional， or Windows NT Workstation. All client computers are configured with default settings.A server named Server1 functions as a DHCP and DNS server. All client computers are configured to use Server1 for name resolution. All DNS zones on Server1 are enabled for DNS dynamic updates. The company’s written security policy states that， when possible， the computer account for each client computer should be the owner of its own DNS host record.A server named Server18 contains antivirus server software. Server18 must be able to contact client computers by using fully qualified domain names （FQDNs） to propagate virus definition updates.You need to ensure that Server18 can resolve FQDNs for all client computers on the network. Which option should you modify on Server1？（）

A. the Dynamically update DNS A and PTR records only if requested by the DHCP clients check box
B. the Always dynamically update DNS A and PTR records check box
C. the Discard A and PTR records when lease is deleted check box
D. the Dynamically update DNS A and PTR records for DHCP clients that do not request dynamic updates （for example， clients running Windows NT 4.0） check box

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丙烯腈的副产物中易发生自聚的有（）

A. 丙烯醛
B. 二氧化碳
C. 一氧化碳

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以下说法，不属于班组长岗位职责的是（）

A. 传话通知，把上级要求，原话传达给班组成员，也要把班组员工的要求一字不差地报告给上级
B. 平衡协调，班组长要和兄弟部门保持顺畅的沟通、协调，使跨班组工作，顺利进行
C. 启下，做好班组的组织管理工作，带领班组员工完成任务，使各项资源充分有效发挥
D. 承上，承担单位职责，达成组织目标，执行上司指示

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长期高血压老人易发生脑出血主要是因为（）。

A. 脑内血管弹性差，已破烈出血
B. 长期高血压易使脑的小动脉形成动脉瘤，血压升高时易破烈出血
C. 血压高，老人易跌倒致脑血管破烈
D. 血压高，老人情绪不稳定而致脑血管破烈出血

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