Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual （counter-rotating） ring topology？（） [" DTP"," RPR"," SDH"," CWDM"," DWDM"]
决策科学化是决策者追求的目标，那么决策者如何运用决策思维，促使决策科学化？
分析近体诗的平仄应采取什么步骤？
专业技术人员该如何突破创新的窘境（）。 ["专业技术人员应该提高培训和开发的效率","专业技术人员应该培养一定的技术预见能力","专业技术人员应该培养一定的市场预测能力","专业技术人员应该培养一定的把控动态创新系统的能力"]
In a base e-Commerce module design, which routing statement is correct?（） [" Routing is mostly static."," Hardcoded IP addresses are used to support failover."," Inbound servers use the CSM or ACE as the default gateway."," VLANs between the access layer switches are used for FHRP protocols."]
生物小循环
