限制受端()可使频率回升。 ["电压","有功功率","无功功率","负荷"]
对直流架空输电线路,带电作业的安全空气间隙按操作过电压间隙加()来考虑。 ["0.1~0.3m","0.3~0.5m","0.5~0.7m","0.7~1m"]
下面四句话中只有()是复句。 ["他走进会场找了个座位。","会者不难,汽车很快修好了。","在返回的路上,他终于昏倒了。","成熟的荔枝,呈红色或紫色。"]
STRDP指令查看中继设备的状态时,可能会有下列哪些状态?() ["BLOC","BUSY","LIBL","SEAL","SEBU"]
公务员考核中,“政策理论水平”一般属于下列哪一方面考核内容的指标?() ["德","能","勤","绩"]
儿童出生后,最明显的情绪表现,就是()。