这些测试会试着模拟一种实际的工作负荷，但是没有模拟可以完全代替末端用户团队的实际复杂操作行为。

This testing attempts to simulate an actual workload, but no simulation can fully account for the complex behaviors of a team of end-users.

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在本文介绍的例子中，我们可以完全控制所触发的中断（模拟的）。

You will have complete control over raising interrupts (simulated) in the example described throughout this article.

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第一种，系统模拟，安装完全的虚拟机。

The first, system emulation, sets up a complete virtual machine.

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We're also posting a practice exam for you to take, so after you're completely done your studying, it's good to have everything done before you take the practice exam, and then sit down just with this sheet here and your calculator, and ideally a timer, and make sure you can do the practice exam in the allotted amount of time.

我们还将给出一份模拟试题，因此在你完全复习好之后，最好先复习完,再做这份模拟试题，坐下来,只拿出这张表与计算器，最好还有个计时器，确保自己完成模拟题,在规定的时间内。

麻省理工公开课 - 化学原理课程节选

And then she took the exact same people-- this time, put them in a pilot overalls and at the same time put them in a flight simulator and showed them the exact same the eye chart.

然后她把让同一群人-,这次让他们穿上飞行服,同时让他们坐进飞行模拟器,然后给他们看完全相同的视力表。

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