No deduction is allowed for the（）mess-room in ships having passenger accommodation，which are not also provided with a passengers’ mess-room. ["officer","officers","officer's","officers&rsquo"]
When a ship is fully loaded, it needs to prevent the main engine to be（）.While a ship is fully empty, it needs to prevent the main engine to be（）. ["overspeed；overload","overload；overspeed","over mechanical load；over thermal load","over torque；overspeed"]
培训效果测定有哪些层次？（） ["反应层次","学习层次","行为层次","结果层次"]
跨国企业的员工来源有（） ["母公司员工","东道国员工","第三国员工","本国员工"]
商业银行定期存款期限一般在（）以内。 ["1年","2年","3年","5年"]
简述微波通信频率配置的原则。
