You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）. ["The vessel must carry only the lights that comply with the rules; the others may be omitted","The vessel's lights must comply as closely as possible，as determined by her government","The vessel must be altered to permit full compliance with the rules","An all-round light should be substituted for the after masthead light and the stern light"]
Telnet服务器起什么作用（）。 ["它是一个新闻组服务器","它是一个聊天服务器","它是一个远程登录服务器","它是一般常用的服务器"]
RADSS母线差动保护如何加用和停用？
You are Master of a towing vessel engaged in towing three barges astern.The middle barge of the tow would be required to sound which of the following during restricted visibility （）. ["No fog signal","A prolonged blast at intervals never to exceed more than two minutes","A prolonged blast followed by two short blasts at intervals never to exceed more than two minutes","A prolonged blast followed by three short blasts at intervals never to exceed more than one minute"]
企业与供应商之间的关系大致有以下类型（）。 ["短期目标型","长期目标型","渗透型","联盟型","纵向集成型"]
一个10Ω的电阻与40μF的电容串联的交流电路，电源电压与频率为120V、60Hz，求电路中的电流是多少？
