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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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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Unschooling is easier for parents because they need not plan lessons or grade tests but more difficult in that learning is ever-present and collaborative.

非学校教育方式对于家长而言比较容易实施，因为家长不必制定课程计划，也不用搞什么升学考试。对家长而言，难的是如何保持学习的新鲜感并得到孩子的配合。

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They may teach undergraduates,grade papers and tests, and assist with research.

VOA: special.2009.02.19

They want to make the tests for the... they get into another grade, a little harder.

他们想通过考试……让孩子们升入下一个年级，并提升一点考试难度。

哈莱姆的变迁 - SpeakingMax英语口语达人

Teachers and children will go back to class, prepare lessons, do homework, take tests and grade them.

CNN: Connecticut teachers were heroes in the face of death

Bianca Tanis of New Paltz said she will instruct her third-grade son to refuse the tests.

WSJ: Some NY parents to boycott new, harder state tests

It could also help some firms get a passing grade on government 'stress tests' to assess their fiscal health.

FORBES: Accounting