PowerPoint 2003中，下列说法正确的是（）。 ["打印演示文稿时，打印内容栏中选择“讲义”，每页打印纸能输出默认6张的幻灯片","点击“视图”→“网格和参考线”可以在编辑幻灯片时显示网格线","撤消的操作还可以再恢复","每张幻灯片都可以添加编号","幻灯片中不能插入自动更新的日期"]
（）是天然气加工处理的首要工作。 ["天然气脱水","天然气分离","天然气精馏","天然气脱硫"]
使用（）命令可以显示默认带宽。 ["show interfaces","clock rate","no shutdoen","interface serial"]
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）. ["indicated horsepower","brake horsepower","net horsepower","friction horsepower"]
从职业生涯发展的形式来看，职业生涯通道设计有以下几种模式（）。 ["单通道模式","双通道模式","横向职业通道模式","多通道模式"]
怎样提高炉头温度？
