This paper expounds the promotion of computer grade tests to the teaching of computer culture basis in the ground of theory and teaching practice.

从教学实例和理论上阐述了计算机等级考试对计算机文化基础教学的促进作用。

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A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot.

一个CAPTCHA程序能够生成一些人类能通过，但是目前的计算机却无法通过的测试。

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CAPTCHA is a program that can generate and grade tests that most humans can pass, but current computer programs can't pass (typically a picture with distorted text).

CAPTCHA是可以生成并分级测试的程序，这些测试人可以通过但当前计算机程序却不可以(很典型地如一个有无序文本的相片)。

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