在弃船时当需要跳水求生时应该尽量（），最好是尝试着（）冷水中。 ["避免直接突然浸入冷水中；逐渐的进入","站在高舷侧一边跳水；直接跳入救生艇内","避免直接跳入救生艇内；快速的跳入"]
无线网络问题主要从（）、（）、（）和（）四个方面来进行分析。
The most common cause of lowering the crankcase lube oil flash point is （）. ["more water contents","contamination with fuel oil","higher temperature","sufficient cooling of oil mist"]
Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white? （） ["A vessel engaged in diving operations","A pilot vessel","A vessel trawling","All of the above"]
柜员日结包括（）等步骤。 ["尾箱日结","凭证日结","单据检查","机构日结"]
简述乱笺的恢复原则？
