Because of a logical corruption in your production database， you wanted to perform Tablespace Point in Time Recovery （TSPITR）. But before you start the recovery，you queried the TS_PITR_OBJECTS_TO_BE_DROPPED view and realized that there are a large number of objects that would be dropped when you start the recovery by using this method. You want to preserve these objects. Which option must you use to perform TSPITR and preserve the object？（） Perform Export before TSPITR and Import after TSPITR。 Move objects to another schema that has the same tablespace assigned。 Perform Incomplete Recovery before TSPITR with the Log Sequence Number （LSN）。 Perform Incomplete Recovery before TSPITR with the System Change Number （SCN）。
顾客
Refer to the exhibit. Given the interface configuration on a DSL connection with PPPoE, select the true statement.（） The router is limiting the size of TCP and UDP packets. 。 The configuration implements an effective Layer-2 fragmentation technique.。 The value of 542 is recommended in several RFCs. 。 There is another upstream router terminating the PPPoE session.。
简述晶体结构对扩散的影响。
“革命样板戏”中的“交响音乐”是（） 《沙家浜》。 《红灯记》。 《智取威虎山》。 《白毛女》。
移动通信机房内的各类接地线应从（）或共用地网上分别引入。
