单项选择题

Each fire hose coupling on a ship must have threads that meet the specifications of the（）.

A.American Petroleum Institute
B.National Standard Fire hose Coupling
C.American Society of Mechanical Engineers
D.Underwriter's Laboratories，Inc

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Each EPIRB required on an OSV shall be tested using the integrated test circuit and output indicator every（）.

A.week
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Each EPIRB required on a ship shall be stowed in a manner which will permit（）.

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