填空题
USB fax/modems that conform to this subclass of the Communication Device Class （CDC） vendor neutral standard are Linux compatible （answer is a 3 letter acronym）.（）
ACM(ABSTRACTCONTROLMODEL)
单项选择题 Whatinformationisdisplayedbythecommandcat/proc/dma？（）
单项选择题 WhichDebianpackagesystemcommandwilllistallpartiallyinstalledpackagesandsuggesthowtogetthemcorrectlyinstalled？（）
单项选择题 What is the output when the following shell script executes？（） cat<；<；foobar Hello foobar foobar
