线路电压1500V以上的导线和电缆,应按短路电流进行热稳定校验。
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Policy -Based Routing (PBR) has been enabled on Router R1's interfa ce F0/0. Which of the following is true regarding how PBR works?()
A. Packets entering F0/0 will be compared based on the PBR route map.
B. Packets exiting F0/0 will be compared based on the PBR route map.
C. IOS ignores the PBR forwarding directions wh en the packet matches a route map deny clause.
D. IOS ignores the PBR forwarding directions when the packet matches a route map permit clause.
玻璃纤维按碱金属氧化物含量的多少可以分为()、()和(),其中高压玻璃钢管道生产使用的是()。