航海英语船舶证书单项选择题每日一练(2018.09.29)

单项选择题
Permission is requested to pump out about 200 tons of clean sea ballast water for （） purposes．
A.safe manning
B.trimming
C.avoiding collision
D.preventing pollution
单项选择题
I shall apply （） the extension of my Deratization Certificate．
A.to
B.for
C.of
D.on
单项选择题
This Certificate will remain in force until May 1,2009.This Sentence refers to （） of the Certificate.
A.the validity
B.the time
C.the date
D.the issue
单项选择题
Please collect all the shore-passes and hand them back （） me．
A.for
B.with
C.to
D.of
单项选择题
A vessel’s Certificate of Documentation （）.
A.may be retained by the owner at the home port or kept on the vessel
B.must be posted under transparent material in the pilothouse
C.must be carried on board
D.must be kept on file at the corporate offices of the owner or operator