连接已正常工作的两网元的光纤全部断纤后,两网元上报的最高级别的告警是(),该告警由()功能模块检测。
参考答案:R-LOS;SPI
——It was the drug,not the disease,that killed the boy.
——He would be still alive today if he ________ that drug.
A.not take
B.shouldn’t have taken
C.didn’t take
D.hadn’t taken
有一只内阻为200Ω,量程为1mA的毫安表,打算把它改制成量限为5A的电流表,应该并联()的分流电阻。
A.0.25Ω
B.0.08Ω
C.0.04Ω
D.0.4Ω