成年褐家鼠的体长一般超过()mm ["A、130","B、150","C、180","D、210"]
宏分集的取舍决定了()的网络架构 ["E-UTRAN,","CN,","RNC,","UE."]
干粉灭火器使用时,应将喷嘴对准火焰的()。 ["A、上部","B、中部","C、根部","D、以上都可以"]
运行中,锅炉发生缺水时,其表现的现象通常有()。 ["A、过热汽温急剧上升。","B、水位表看不见水位","C、低水位警报","D、锅炉发出焦味","E、水位表水位不动_假水位_","F、给水流量小于蒸汽流量"]
不是宏分集技术的优点的是() ["A.提高系统容量,","B.提高小区边缘传输速率,","C.增加小区覆盖范围,","D.降低邻区干扰."]
在对检测结果的处理和检测报告中,应使用()计量单位。