DDZ-Ⅲ型差压变送器是根据力平衡原理进行工作的,这种结构是一个具有极深负反馈的无差系统。
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You are designing an OU structure for IT staff at the branch offices. What should you do?()
A. Create an OU for the NewApp Web servers. Assign the IT staff at the branch offices user rights to this O
B. Create an OU for the NewApp data servers. Assign the IT staff at the branch offices user rights to this O
Create an OU for the IT staff at each branch office. Place network administrators at the branch offices in these OUs.
D. Create an OU for each branch office. Place local servers in the OU for their respective office. Assign the IT staff at the branch offices user rights to these OUs.
设备或导线附近发生雷电放电时,在设备或导线上由于静电感应而产生的短时过电压称为()。
A. 感应过电压
B. 外部过电压
C. 静电过电压
D. 内部过电压
铅蓄电池放电过量,如电压在1.75v以下,密度在1.20g/cm’以下继续放电,则会造成蓄电池()
A. 极板腐蚀
B. 极板硫化
C. 极板短路
D. 极板脱落
制宣传教育的对象是一切有接受教育能力的公民,“六五”普法作为重中之重的教育对象是()
A. 领导干部
B. 企事业经营管理人员
C. 青少年
D. 进城务工人员