液位仪出现油罐图标丢失和探棒信号中断的故障需要联系专业人员到现场处理。()
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水可以对炽热设备进行冷却,可以直接扑救油类火灾。()
在临时用电有效期内,如遇施工过程中停工、人员离开时,临时用电单位应从供电端向受电端逐次切断临时用电开关。()
中性点直接接地的三相四线电路中,电器设备宜采用接地保护。()
YournetworkcontainsanActiveDirectorydomain.AusernamedUser1takesaleaveofabsenceforoneyear.YouneedtorestrictaccesstotheUser1useraccountwhileUser1isaway.Whatshouldyoudo()
A. FromtheDefaultDomainPolicy,modifytheaccountlockoutsettings.
B. FromtheDefaultDomainControllerPolicy,modifytheaccountlockoutsettings.
C. Fromthepropertiesoftheuseraccount,modifytheAccountoptions.
D. Fromthepropertiesoftheuseraccount,modifytheSessionsettings.