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【单选题】
下列有关货船上用作大型货物处所内部分隔的水密门，描述正确的是（） ①这些遥控操纵的铰链式、滚动式或滑动式门； ②这些在开航前关妥，并航行中保持关闭； ③这些内开启的时间和船舶离港前关闭的时间应记入航海日志中。A.
①、②；
B.
①、③；
C.
②、③；
D.
①～③。
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