一般跟单信用证与备用信用证的主要区别是（）。 ["银行付款的条件不同","适用的范围不同","银行付款时需提供的单据不同","适用的惯例不同","前者属于银行信用，后者属于商业信用"]
斜井双钩提升错码信号是生产、保护信号之一。
You have a file server that runs Windows Server 2008. The server has a shared folder. You need to receive a notifcation when a user stores more than 500MB of data int he shared folder. You must allow users to store more than 500MB of data in the shared folder. What should you do（）？ ["Create a soft quota","Create a hard quota","create an active screening file screen","create a passive screening file scree"]
能够全面反映建设工程施工全过程质量控制和保证的依据性证明资料是（）。 ["工程质量控制资料","工程竣工质量验收资料","竣工图","工程施工技术管理资料"]
You are designing a strategy to enable the ATC application to successfully resolve computer names. Which name resolution method should you use？（） [" DNS"," WINS"," Hosts file"," Lmhosts file"]
简述原始凭证和记账凭证的概念，并简述两者间的联系和区别。
