根据SOLAS74公约的规定，干货船水密舱壁上的所有滑动门和铰链门都应设有指示器，并在何处给出显示这些门的开／闭状态的指示________。

单项选择题There is evil in every human heart, which may remain latent, perhaps, through the whole life; but circumstances may rouse it to activity, which author of the following authors does the mention belong to________.A.Washington IrvingB.Ralph Waldo EmersonC.Nathaniel HawthorneD.Walt Whitman

单项选择题“目标小区准备失败，RNTI准备失败、PHY／MAC参数配置异常等会造成目标小区无法接纳而返回HANDOVERPREPARATIONFAILUE”主要指什么问题?()