这些通常是选择题，有明确的正确答案，而且会有一定的答题时间限制。

These are usually multiple-choice questionnaires, with definite right and wrong answers, and your work is generally timed. The most common types of aptitude tests include

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每一次更换的题目大概是淘30%到40%的旧题，并且补充相应数量的新题，每一次在换题完成之后，题库就会相对的比较的稳定直到下一次的换题时间。

There are 30% to 40% old questions each change and there are some amounts of makeup. After each change, it will be the new time of change.

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对于数学题，你可以用近似法省时间。

With mathematical problems, you can save time by approximating.

《柯林斯英汉双解大词典》

So, why don't you go ahead and take 10 more seconds on this second clicker question for our intro.

请大家再花十秒钟的时间,来做一下第二个选择题。

麻省理工公开课 - 化学原理课程节选

All right. It's 12:05, so why don't you go ahead and take 10 more seconds on the clicker question today.

好，现在已经，12：05，了，请大家,花十秒钟的时间做一下今天的选择题吧。

麻省理工公开课 - 化学原理课程节选

As you're settling into your seats, why don't we take 10 more seconds on the clicker question here.

你们现在都坐在座位上了，为什么不用10多秒的时间,来做这道选择题呢？好的。

麻省理工公开课 - 化学原理课程节选