Examine the following output： SQL> SELECT index_name，status FROM dba_indexes WHERE status=’UNUSABLE’； INDEX_NAME STATUS------------------------------ ----------- EIND UNUSABLE Which two statements about the above index are true（） It is ignored by the query optimizer.。 It is not used while the index is being rebuilt.。 The index cannot be rebuilt， and has to be re-created.。 The index is automatically rebuilt when used the next time。
不能燃烧的永久气体共有（）种。 17。 11。 9。 4。
A customer uses an IBM xSeries x366. They experienced downtime when the NIC failed earlier this year. Their Windows 2003 server needs to be accessible all the time， at the highest speed possible. Two adapters are currently installed in the x366. Which of the following is the procedure to obtain the best performance and ensure network functionality in case of NIC failure？（） Install four NICs and configure load balancing adapter teaming.。 Install four NICs and configure adapter failover teaming.。 Install seven NICs and configure load balancing adapter teaming.。 Install one extra NIC to team with the internal adapter and configure failover teaming.。
You would like to display the system date in the format "Monday, 01 June, 2001". Which SELECT statement should you use? （） SELECT TO_DATE(SYSDATE, 'FMDAY, DD Month, YYYY') FROM dual;。 SELECT TO_CHAR(SYSDATE, 'FMDD, DY Month, 'YYYY') FROM dual;。 SELECT TO_CHAR(SYSDATE, 'FMDay, DD Month, YYYY') FROM dual;。 SELECT TO_CHAR(SYSDATE, 'FMDY, DDD Month, YYYY') FROM dual;。 SELECT TO_DATE(SYSDATE, 'FMDY, DDD Month, YYYY') FROM dual。
网络合同纠纷的司法管辖原则主要有（） 约定优先于法定原则。 原告住所地法院管辖原则。 被告住所地法院管辖原则。 合同履行地法院管辖原则。 侵权行为地法院管辖原则。
Which of the following is not a valid linguistic sort element？（）
