You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（） ["Memory Advisor","Segment Advisor","SQL Access Advisor","Automatic Workload Repository （AWR）","Automatic Database Diagnostic Monitor （ADDM）"]
A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the developer to use the Paper class while compiling the Book class?（） [" The JAR file is located at $JAVA_HOME\/jre\/classes\/myLib.jar."," The JAR file is located at $JAVA_HOME\/jre\/lib\/ext\/myLib.jar.."," The JAR file is located at \/foo\/myLib.jar and a classpath environment variable is set that includes \/foo\/myLib.jar\/Paper.class."," The JAR file is located at \/foo\/myLib.jar and a classpath environment variable is set that includes \/foo\/myLib.jar."," The JAR file is located at \/foo\/myLib.jar and the Book class is compiled using javac -cp \/foo\/myLib.jar\/Paper Book.java."," The JAR file is located at \/foo\/myLib.jar and the Book class is compiled using javac -d \/foo\/myLib.jar Book.java"," The JAR file is located at \/foo\/myLib.jar and the Book class is compiled using javac -classpath \/foo\/myLib.jar Book.java"]
扣缴义务人采取前款所列手段，不缴或者少缴已扣、已收税款，由税务机关追缴其不缴或者少缴的税款、滞纳金，并处不缴或者少缴的税款（）的罚款。 ["百分之五十以上五倍以下","百分之五十以上两倍以下","两倍以上五倍以下","一倍以上三倍以下"]
If you lost your entire database，including the database spfile，control files，online redo logs，and database datafiles，what kind of recovery would be required with RMAN？（） [" Complete database recovery."," Incomplete database recovery."," Approximate database recovery."," Archived database recovery."," The database could not be recovered with RMAN."]
目前的绩效评估工作有什么特点
城市产生的原因有哪几种学说？
