【判断题】推力调心滚子轴承主要承受径向荷载,其承载能力比推力轴承大得多。
【单选题】Neither ______ entirely on the agent when we buy insurance.
【判断题】Cargo insurance is one of the most important parts in international trade. Insurance policy is an evidence of government policy referring to insurance market.( )
【单选题】分布式数据库两阶段提交协议是指(57)。
【简答题】There are four persons to be qualified to sign insurance document namely (1) ______ (2) his agent, (3) ______ (4) his agent.
【单选题】( ) 轴承主要承受径向载荷,其公称接触角 α 越大,承受轴向载荷的能力也越 大