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【单选题】

The successful operation of any engine or machine and () depend on effective lubrication.

A、their no trouble period

B、their freely trouble period

C、its free trouble life

D、its trouble-free life

更多“The successful operation of any engine or machine and () depend on effective lubrication.”相关的问题
第1题

A、A.If the compile is successful, Utils.class is added to the source directory.  B、B.The compiler returns an invalid flag error.  C、C.If the compile is successful, Utils.class is added to the classes directory.  D、D.If the compile is successful, Utils.class is added to the bigProject directory.  

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第3题

A、The command produces an error.  B、The calibration process runs successfully and populates all the bind variables.  C、The calibration process runs successfully but the latency time is not computed.  D、The calibration process runs successfully but only the latency time is computed.Only users with the SYSDBA privilege can run this procedure. Qualified users must also turn on timed_statistics, and ensure asynch_io is enabled for datafiles.  

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第4题

A、A. One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command on a table, and contains the SQL text for the SQL Statements.  B、B. One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command, and contains the execution plan for the SQL statements.  C、C. One audit record is created for the whole session if john successfully executes a SELECT, INSERT, or DELETE command, and contains the execution plan for the SQL statements.  D、D. One audit record is created for the whole session if JOHN successfully executes a select command, and contains the SQL text and bind variables used.  E、E. One audit record is created for the whole session if john successfully executes a SELECT, INSERT,or DELETE command on a table, and contains the execution plan, SQL text, and bind variables used.  

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第6题

A、A. Set the serviceAuthorizationAuditLevel setting to Success and the messageAuthenticationAuditLevel setting to Success.  B、B. Set the messageAuthenticationAuditLevel setting to Success and the auditLogLocation setting to Application.  C、C. Set the serviceAuthorizationAuditLevel setting to SuccessAndFailure and the messageAuthenticationAuditLevel setting to SuccessAndFailure.  D、D. Set the messageAuthenticationAuditLevel setting to SuccessAndFailure and the auditLogLocation setting to Security.  

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第7题

A、There are at least two routers participating in the RIP process.  B、A ping to 192.168.168.2 will be successful.  C、A ping to 10.0.15.2 will be successful.  D、RtrA has three interfaces participating in the RIP process.  

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