在下列K-CHIEF500监视与报警系统特点中,错误说法是()。
A. K-CHIEF500对被监视对象具有控制功能
B. K-CHIEF500没有对设备的故障自动修复功能
C. K-CHIEF500不能进行船岸通信
D. K-CHIEF500一般不用于船舶主机遥控
查看答案
以波动率不同估计为基础进行的波动率套利主要包括()
A. 转换套利与反转换套利交易
B. 水平套利
C. 对角套利
D. 以上均正确
Which of the following is true about an OSPF area border router (ABR)?()
A. The ABR must have multiple interfaces connected to the backbone areA
B. An ABR is a router with two interfaces, each connected to a different nonbackbone areA
C. The only requirement to be considered an ABR is at least one interface connected to the backbone areA
D. An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
电弧引燃后应保持在所用焊条直径相适应的范围内约()。
A. 3-4mm
B. 1m
C. 3mm
D. 5mm
变压器中间验收中,对压力释放装置外观检查的要求是()。
A. 校验合格
B. 内部检查无杂物、污迹
C. 内部检查无渗漏
D. 防雨措施可靠