在传输的电功率一定的情况下，供电电压越高线损越小，供电电压越低线损越大。
薪酬调整的方法是什么？
住房不包括（） 别墅。 商铺。 公寓。 普通住宅。
服务性公关是通过提供各种优惠服务来树立良好的企业形象。
What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（） Repeat the message using any other channel on which you might attract attention。 Key the microphone several times before transmitting again。 Turn up the volume on the receiver before transmitting again。 Report the problem to the head electricia。
When evacuating a seaman by helicopter lift，the vessel should be（）.
