Applications put computers to praticalbusi

问题单项选择题

Applications put computers to praticalbusiness (1), but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store(3).A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time.

The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail.

5（）

A．abort

B．about

C．above

D．around

答案

参考答案：C

解析：

因为Web服务器是独立于(independent，独立的)平台和应用的，它们能从包括数据在内的现有的或外部应用程序发送或请求数据。所有的返回结果一旦被转换成超文本(hypertext)标记语言，就能被传送给浏览器(browser)。用这种方法，内联网可以(offer，提供，没有译出)降低桌面应用的支持成本，并能容易地将现有的应用程序和数据库连接起来。最重要的是(above all是固定搭配)，它使用起来非常方便。