[单选] If the named port is one at which no tugs are ever obtainable，and the chartered vessel can not，by reason of her size，reach that port without the assistance of tugs，the port is（）.

If there are a number of survivors in the water after abandoning ship，they should（）. tie themselves to the unit so they won't drift with the current。 form a small circular group to create a warmer pocket of water in the center of the circle。 send the strongest swimmer to shore for assistance。 form a raft by lashing their life preservers together。 全新君威2.0L配备的6速手自一体变速箱不具有（）。 A.单一轴设计。 B.高精度齿轮组。 C.全铝材质。 D.离合器直接换档。 在农电生产系统中，线路检修记录的环节不需要走下列哪个流程（） A.线路检修记录填写。 B.代办工作单。 C.线路检修记录审核。 D.以上都正确。 行政机关实施查封、扣押措施，查封、扣押的期限不得超过（） 10日。 20日。 30日。 60日。 可随意翻捡客舱垃圾，进行垃圾分拣。 If the named port is one at which no tugs are ever obtainable，and the chartered vessel can not，by reason of her size，reach that port without the assistance of tugs，the port is（）.