Fire and lifeboat stations are required to be listed on the （）.
A. ships articles
B. muster list
C. bunk card
D. forecastle card
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中性点不接地的交流系统中，熔断器应装在（）上。
A. 其中一相
B. 其中两相
C. 三相
D. 零线
下列选项中，（）不属于晶体管放大器的主要技术指标。
A. 增益
B. 电源电压
C. 输入、输出电阻
D. 频率特性
If your asphalt barge has operated more than 12 months in saltwater in the 24 month period since it was last dry-docked，when is it required to be hauled out again? （）
A. 12 months since last dry-docking
B. 18 months since last dry-docking
C. 24 months since last dry-docking
D. 36 months since last dry-docking
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