You have configured Automatic Shared Memory Management. Which four memory structures would be automatically tuned？ （） [" log buffer"," Java pool"," Large pool"," Fixed SGA"," Shared pool"," Streams pool"," Keep buffer cache"," Database buffer cache"]
班级保教工作除了具有更直接的目的性、教育性、全面整体性，还具有（）。 ["集体性","主导性","创造性","开放性"]
Which two code fragments， inserted independently at line 3， generate the output 4247？（） [" String s = "123456789"； s = （s - "123"）.replace（1， 3， "24"） - "89"；"," StringBuffer s = new StringBuffer（"123456789"）；s.delete（0， 3）.replace（1， 3， "24"）.delete（4， 6）；"," StringBuffer s = new StringBuffer（"123456789"）； s.substring（3， 6）.delete（1，3）.insert（1， "24"）；"," StringBuilder s = new StringBuilder（"123456789"）；s.substring（3， 6）.delete（1， 2）.insert（1， "24"）；"," StringBuilder s = new StringBuilder（"123456789"）； s.delete（0， 3）.delete（1， 3）.delete（2， 5）.insert（1， "24"）；"]
You use the segment advisor to help determine objects for which space may be reclaimed. Which three statements are true about the advisor given by the segment advisor?（） [" It may advise the use of online table redefinition for tables in dictionary managed tablespace."," It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows."," It may advise the use of online table redefinition for tables in locally managed tablespaces"," It will detect and advise about chained rows."," It may advise the use of segment shrink for free list managed tables."]
污水处理系统第一级采用（）隔油 ["斜板","撇油器","加药"]
化工泵的故障大体可分为（）、（）、（）、（）四大类。
