單項選擇題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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1.單項選擇題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

2.單項選擇題In the first survey, （） compiles the survey report and fills in certificate.

A.surveyor
B.chief engineer
C.captain
D.chief mate

3.單項選擇題（） 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

4.單項選擇題When carrying out the voyage trial, the M-E is not necessary to take（）trial.

A.starting
B.running
C.running-in
D.direction changing

5.單項選擇題After repair, the voyage trial of the M-E should be done （）

A.after the mooring trial has passed
B.before the mooring trial
C.under the surveyors supervision
D.after repair