单项选择题
Medium survey should be carried out （） times during the valid period of the certificate.
- A.2
B.3
C.4
D.1
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相关考题
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单项选择题
The first survey has two situations, one is changing （） survey, the another is making survey.
A.registry
B.ship hull
C.nationality
D.replacing machineries and electric devices -
单项选择题
In the first survey, （） compiles the survey report and fills in certificate.
A.surveyor
B.chief engineer
C.captain
D.chief mate -
单项选择题
（） is/are the legal survey institution(s) that stated by PRC.
A.Ship Survey Bureau
B.CCS
C.Maritime Safety Administration
D.all of the above
