[单选] 银行汇票签发业务，系统提示“业务发送失败”，此时业务状态为（）。

After you activate your emergency position indicating radiobeacon，you should（）. turn it off for five minutes every half-hour。 turn it off and on at five-minute intervals。 turn it off during daylight hours。 leave it on continuously。 95598系统中[抢修跟踪查询]和[抢修综合查询]只能查询所有的故障单、抢修派工单的处理情况。 故障处理后，在95598系统中，[移交内联部门]或[抢修销单]界面必须填写处理人员、处理内容、用料记录、到达现场时间和完工时间。 A tug is approaching a broken down steamer in moderately heavy weather preparing to take it in tow. In most cases the（）. steamer will drift stern downwind。 tug will drift faster than the steamer。 tug should approach stern to。 tug should approach from downwind。 班级教（德）育方法 银行汇票签发业务，系统提示“业务发送失败”，此时业务状态为（）。