在WINDOWS98中，屏幕上可以同时出现多个窗口，如果几个窗口互相重叠，则活动窗口的位置总在（）。 ["前面","后面","不确定"]
What will improve the battery life of a Cisco Unified Wireless IP Phone 7921G?（） ["configuring phone to auto select network","configuring beacon period to 80 ms","configuring DTIM period to 2","enabling RRM"]
CorelDRAW软件是由加拿大的Corel公司推出的（）设计软件。 ["点阵图像","三维动画","矢量图形","音频数据"]
A Catalyst switch has just been installed and configured, and is not working as expected. You have decided to capture multiple show command outputs to study. Which one command could you use that includes the output of many other show commands, such as show version and show running-config?（） [" show configuration"," show memory"," show stacks"," show tech-support"]
Hash函数就是把任意长度的输入，通过散列算法，变换成固定长度的输出，该输出称为（）。
某公司只销售一种产品，2003年单位变动成本为15元/件，变动成本总额为63000元，共获税前利润18000元，若该公司计划于2004年维持销售单价不变，变动成本率仍维持2003年的30%。要求：若目标利润为98500元，预测实现目标利润时的销售量；
