Anemergencygenerator,drivenbyaninternalcombustionengine,shallbetestedunderloadforaminimumof2hoursatleastonceevery（）
A. week
B. 2weeks
C. month
D. 3months
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经办柜员可通过（）交易菜单，编辑批量开卡客户信息并生成批量文件。
A. “无折批量开卡数据编辑”
B. “有折批量开卡数据编辑”
C. “批量开卡数据编辑”
Ifasteeringmotorbecomesoverloaded,the（）
A. overloadconditionof5%willtripthemotoroffthelineimmediately
B. overloadconditionwillbeindicatedvisuallyinthemachineryspace
C. motorrunningindicatorwillbegintoflash"on"and"off"inresponsetothesustainedoverloadcondition
D. standbysteeringpumpwillstartautomaticallyandcomeontheline
Biodegradationoftheoilslickinseawaterisassistedbyallthefollowingmarinemicro-organismswhicharecapableofmetabolisingoilcompoundsexcept（）.
A. bacteria
B. moulds
C. yeasts
D. seals
HowistheMasteroroperatorofavesselrequiredtokeepthecrewinformedoftheregulationsconcerningthedischargingofgarbageoverboard?（）.
A. GiveeachcrewmemberacopyofANNEXVofMARPOL
B. Callanallhandsmeetingbeforesailing
C. Keepplacardsprominentlyposted
D. Haveeachpersonreadandsignacopyoftheregulations
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