力偶的三要素是力偶的作用面方位、力偶的转向、力偶的大小。两力偶等效的条件是力偶矩相等。
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处理断路器的不合格SF6气体时,应予(),不得随意向大气排放,以免污染环境及造成人员中毒。
A. 加温
B. 随意释放
C. 回收
D. 加压
我国某地有一口井,每年只有1天有阳光直射井底的现象,该地的纬度和该天日期搭配正确的是()
A. 23.5°S-冬至日
B. 23.5°S-夏至日
C. 23.5°N-冬至日
D. 23.5°N-夏至日
话音的一个TRAU单元信道编码后交织深度是(),数据的交织深度是(),信令的交织深度是()。
What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when using the "show ip bgp" c ommand?()
A. The network was originated via redistribution of an interior gateway protocol into BG
B. The network was defined by a static route.
C. The network was learned via IBG
D. The network was learned via EBG
E. The network was originated via a network or aggregate command.