在Internet服务中，一般不使用公用名和公共口令的是（）。 ["FTP","BBS","电子邮件","某些ISP"]
供应链管理中渠道结构的影响因素主要有（）。 ["A.市场覆盖率目标","B.产品特征","C.产品的自身价值","D.客户服务的目标","E.利润"]
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"]
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？
在ISTA中完成车辆测试后，控制单元树状图会显示出哪些信息（） ["特定控制单元的故障代码存储器记录","控制单元的安装位置","控制单元已安装并注册","所装控制单元的总线连接"]
RADSS母线差动保护如何加用和停用？
