商业银行理财产品营销的创新与差异化策略中，具体的差异化途径有（）。 ["销售时间差异化","产品设计基础资产的差异化","期限多样化，合理配比收益率","严格分层化服务"]
I think it’s（）longer necessary for me to sign. ["no","not","nor","neither"]
液化石油气槽车的条带及文字、危险信号旗应涂以（）。 ["A.绿色","B.黄色","C.红色","D.蓝色"]
凡信号的某一参量只能取有限个数值，并且常常不直接与消息相对应的叫（）。 ["模拟信号","数字信号","基带信号","宽带信号"]
Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?（） ["Splash","Gravity","Pressure","Bypa"]
如何根据变压器中取气盒气体颜色及性质判断故障？
