Given that the current directory is empty, and that the user has read and write privileges to the current, and the following: Which statement is true?（） Compilation fails.。 Nothing is added to the file system.。 Only a new file is created on the file system.。 Only a new directory is created on the file system.。 Both a new file and a new directory are created on the file system.。
植物侵染性病害发生过程可划分为几个时期？侵入途径有哪些？
居住国政府在行使居民（公民）管辖权时，允许本国居民（公民）用已缴非居住国政府的所得税或一般财产税税额，作为向本国政府汇总申报应税收益、所得或一般财产价值的一个扣除项目，就扣除后的余额，计算征收所得税或一般财产税的方法称为（）。 扣除法。 全额抵免。 普通抵免。 免税法。
In a virtual environment， what differentiates an x3950 M2？（） Disk space。 Memory。 Extra Power supplies。 CPU speed。
有效竞争
Which of the following Scheduler elements encourage object reuse？（）
