空速对加氢精制有什么影响？
Your company decided to start using RMAN in its backup strategy. Previously your company used operating system file copies. Which command is used to make RMAN aware of existing backups made by copying files at the operating system？（） ["CHANGE","RESYNC","CATALOG","CROSSCHECK"]
在传统儒家文化特别是宋明理学中，“性”主要是指（）。 ["爱","情感","天性","性欲"]
请简要说明CRM系统实施的一般步骤。
根据国家和行业有关规定，水利工程建设程序分为（）个阶段。 ["五","六","七","八"]
我国刑法规定的计算追诉期限的方法有哪些？
