（）of this deratting exemption certificate is hereby extended until 4th 0ct.1988 as the vessel is laden with cargo.<br>A:Validity<br>B:Valid<br>C:Validation<br>D:The coming into force

（）of this deratting exemption certificate is hereby extended until 4th 0ct.1988 as the vessel is laden with cargo.
A:Validity
B:Valid
C:Validation
D:The coming into force

出自：海船船员证

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