多项选择题
Which of the following Scheduler elements encourage object reuse？（）
A. Schedule objects B. Program arguments C. Job classes D. Job arguments E. All of the above
单项选择题 WhichofthefollowingisnotavalidsettingforthePROGRAM_TYPEparameterinaprogramobjectortheJOB_TYPEparameterinajobobject？（）
多项选择题 Whichofthefollowingarevalidprogramtypesforalightweightjob？（）
多项选择题 Whichofthefollowingobjectscanbedirectlyreferencedbyawindowobject？（）
