土地市场运行模式和土地市场运行机制
Why would you run the delete obsolete command？（） [" To remove missing backup set pieces physically from disk"," To remove metadata related to backup set pieces in the control file and the recovery catalog"," To mark as deleted records in the control file and the recovery catalog associated with obsolete backup sets"," To delete backup set pieces associated with backups that are no longer needed due to retention criteria"," To remove old versions of RMAN backu"]
道德密度
气质类型为（）的人，经常处于兴奋、紧张和压力之下，容易患心血管疾病等。 ["多血质","胆汁质","黏液质","抑郁质"]
SET协议的信用卡支付属于（） ["无加密的信用卡支付","简单加密的信用卡支付","通过第三方验证的信用卡支付","专用协议信用卡支付"]
（）――学会爱，是教育者高智慧的体现。
