用给出的单词填空,并适当的加以变形
操作系统提供“后台”控制服务,用来保证电脑系统功能更有效率.这些内部服务更多的是有操作系统本身控制而不是由你控制.操作系统控制和分配系统资源,管理程序和数据所占空间,以及设备,并且完全不用你自己插手.还可以控制输入容量和输出效率
那为英语高手帮下忙啊Fill in each of the blanks with one of the words g
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