磁电系多量限电流表的环形分流转换电路,由于()的原因,在实际电路中常被采用。
A. 各分流电阻温度系数小,其阻值相当稳定
B. 分流电阻各自独立,互不干扰
C. 各量限的误差调整比较方便,且计算简单
D. 转换开关的接触电阻不会影响任一分流回路的分流准确度
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如果摩擦现象发生在两物体间的相对滑动,这种阻碍相对滑动的现象叫滑动摩擦。()
A. 正确
B. 错误
A company wants to replace their Dell servers and implement x445 servers with a Storage Area Network (SAN). They will add an IBM TotalStorage DS4500 and EXP710s for their storage requirements. The customer’s goal is to reduce the Total Cost of Ownership (TCO) of their current environment. Which of the following factors provide the greatest advantage?()
A. The DS4500 with DS4000 Storage Manager provides efficient storage utilization.
B. The DS4500 and x445 provide disaster recovery capability.
C. The IBM TotalStorage DS4500 includes virtualization of the disk storage.
D. Storage partitioning and Remote Volume Mirroring are standard features with the DS4500 product.
On a cisco aironet 1240ag series standalone access point, the radio led is dark blue and blinking, but the status led and ethernet led are both off. what does this indicate?()
A. a firmware upgrade is in progress.
B. an access point buffer overflow is occurring.
C. the access point is booting.
D. the internal radio has faile.
国家实行()和考核评价制度,县级以上人民政府应当将环境保护目前完成情况纳入负有环境监督管理职责的部门及下级人民政府负责人的考核内容,作为对其考核评价的重要依据。
A. 环境保护监督制度
B. 环境公开制度
C. 环境保护目标责任制
D. 环境保护奖惩制度