Sure enough, this was all Twain needed to hear, and he immediately volunteered to be a test subject.

无疑这就是一切吐温需要知道的，他听后立即表示愿意成为这项发明的实验对象。

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For this to work, the test subject must first train the computer to respond correctly to commands.

这项工作，首先必须训练计算机能够对指令做出正确反馈。

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The test subject is asked to choose betweentwo hypothetical rewards: either receiving $1, 000 in a monthor a smaller amount now.

我们要求被试在两种假设回报中进行选择：要么一个月后接受1000美元，要么现在接受一笔总额更小的钱。

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But the Institute of International Education says business and management, which brings us to the subject this week in our Foreign Student Series - the Graduate Management Admission Test.

VOA: special.2009.01.08

They're more like propositions, like speculations, that we're asked to test through empathic identification with, in this case, the poem's subject, Leda.

它们更像观点，像推测，而不是问题，叶芝问这些问题,以同情的口吻关注着，此诗的主题，丽达。

耶鲁公开课 - 现代诗歌课程节选

To confirm that the device works by cooling the body, Dr Grahn himself volunteered to be the next test subject.

ECONOMIST: Athletics: Cool, man | The

Stanford researchers wanted to break with tradition and selected one of the simplest organisms around, M. genitalium, to be their test subject.

ENGADGET: Scientists create first computer simulation of a complete organism

If Dr. Wang's previous studies are any indication, he will see that a test subject's striatum, a sort of communications hub inside the brain, has fewer dopamine receptors than the striatum of someone with normal eating habits.

FORBES: Food on the Brain