若客户进行汇率查询时,无法查询到汇率,是什么原因?
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An IBM Tivoli Workload Scheduler administrator finds that most of the job streams are carried forward during each production day. Which action should the administrator take to ensure that only a few job streams need to be carried forward? ()
A. change start of day
B. disable the Carry Forward option
C. cancel all job streams before start of day
D. Administrator does not have to take any actio
船舶进行加油作业时,必须遵守操作规程,采取有效的预防措施,防止发生漏油事故。
A. 正确
B. 错误
可选为界址点的地物点最好为()个不同方向的其他明显固定地物点交会出来的点位。
A. 2
B. 3
C. 4
D. 8
孩子仰卧时,拿玩具吸引他的注意力,当他看着玩具时,慢慢向一侧再向另一侧移动玩具,鼓励他转头一直看着玩具。若这样做时引起孩子全身僵硬,则不要做此活动。
A. 正确
B. 错误