PSC单选

Hydrostatic release unit used in the float-free arrangements of liferafts shallbe permanently marked on the unit or identification plate securely attached to the unit, with the date of manufacture, type and serial number and whether the unit is suitable for use with a liferaft with a capacity of more than _____ persons.

发布于 2021-03-04 19:43:24

【单选题】
A 15
B 20
C 25
D 30

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达达 2023-03-04

这家伙很懒，什么也没写！

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人间小菊花

70，无他，哪怕最难吃的shi，吃久了都会有感情

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