IMSI (International Mobile Subscriber Identity)的结构包含() ["MSIN","MCC","CC","MNC"]
若DVOR信标与DME信标安装在同一台站,DVOR与DME的Morse码发生器每30s均产生4次完整的识别码,当它们的识别码工作在“独立”与“联合”方式时,DVOR与DME辐射的识别码的比率分别是() ["3:1,2:1","4:1,3:1","3:1,3:1","5:1,3:2"]
研究过异化的人有() ①马克思 ②黑格尔 ③弗洛姆 ④萨夫 ["①","①②","①②③","①②③④"]
加弹机油轮转速波动故障的处理方法有()。 ["检查油轮之间连接是否正常","检查油轮传动链条是否正常第","检查油泵入口滤网是否脏污","检查油轮轴是否断裂"]
什么是社会语言学?
卷烟包装箱循环利用达到“两个50%以上”具体内容是什么?