Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS-1 timing source?() ["DUS","line timing","loop timing","internal timing","through timing"]
精馏塔实现精馏过程的主要条件是什么?
发电机横差保护中,横差继电器的滤过比K是()动作电流与()动作电流的比值。
关注精神分裂症阴性症状的意义,在于() ["有效识别早期症状","确定诊断","合理选择治疗药物","判断预后","有针对性地制定康复措施"]
The dispersion of a non-zero dispersion shifted fiber is 6 ps/nm*km at 1550 nm and 10 ps/nm*km at 1610 nm. What is the minimum dispersion compensation required if an L-Band DWDM signal travels through 200 km of fiber and has a dispersion tolerance of 1800 ps/nm?() [" none"," -600 ps\/nm"," -200 ps\/nm"," +200 ps\/nm"," +600 ps\/nm"]
《()》的出版,标志着中国现代诗歌发展的第一个时期“初期白话诗歌”时期的结束。