极阵区域的最大宽度是多少()? ["70米","80米","90米","100米"]
若MCU的媒体处理模块工作状态正常,则指示灯显示为。() ["闪烁(0.5Hz)","长亮","长灭","闪烁(5Hz)"]
湿温病湿遏卫气证的治法是:()。 ["清热解毒","分消走泄","芳香辛散","宣化表里之湿","辛凉解表"]
为监测被控设备瓦斯超限是否断电,被控开关的负荷侧必须设臵()传感器。
每支旗杆的最小高度是()? ["1米","1.2米","2米","2.2米"]
人工测量瓦斯与监控系统测量瓦斯时当两者读数误差大于允许误差时,先以读数()为依据,采取安全措施,并必须在()小时内将两种仪器调准。