单项选择题
If two windows overlap， which window attribute will determine whether one should be chosen over the other？（）
A. WINDOW_PRIORITY B. PRIORITY C. PRIORITY_LEVEL D. WINDOW_PRIORITY_LEVEL E. OVERLAP_RULE
单项选择题 Whichofthefollowingistrueaboutjobchains？（）
单项选择题 Ifajobreferencesaschedulethathasbeendisabled，whatwillbetheresult？（）
单项选择题 WhatisthedangerassociatedwithstoppingarunningjobbyusingtheSTOP_JOBprocedure？（）
