In()convention,avesselwhichcarriesmorethan12passengersshallbedeemedasapassengership.
A. COSCO
B. STCW
C. SOLAS
D. MARPOL
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Completemaintenanceofelectricalmotorsshouldincludeperiodicchecksformachine()
A. vibration
B. watertightintegrity
C. speeddroop
D. reactivepower
ThenumberofcyclespersecondoccurringinACvoltageisknownasthe()
A. phaseangle
B. frequency
C. waveform
D. halfmode
下面哪些是会议文书()
A. 日程安排表
B. 开幕词
C. 代表提案
D. 主题报告
E. 选举结果
F. 群众来信
Voltagewillalwaysleadcurrentina/an()
A. capacitivecircuit
B. inductivecircuit
C. magneticcircuit
D. resistivecircuit