【单选题】用INMARSAT-C船站发送遇险优先等级电文时,船站应__________。
【单选题】用INMARSAT船站发送遇险报警,其优先等级应是()
【简答题】反映了响应y(t)的 和 随频率变化情况。
【单选题】In some places women are expected to earn money men work at home and raise their children.
【单选题】使用INMARSAT-C船站发送遇险优先等级电文时,船站应().
【单选题】In some places women are expected to earn money ________ men work at home and raise their children.
【单选题】In some places in Yunnan, women are expected to run society and earn money ______ men work at home and raise their children.
【单选题】In some places, women earn money ________ men work at home and raise their children.
【单选题】用INMARSAT-C船站发送遇险电文时,通信的优先等级应().
【单选题】使用INMARSAT-C船站发送遇险优先等级电文时,船站应__