Listen to the tape then answer this question. What color is the electric cooker?
听录音,然后回答问题。电炉是什么颜色的?
If the interviewer cannot give a clear answer then this is a worrying sign, so politely follow up with more questions.
如果考官不给你明确的答复,那么这就是一个让人担忧的信号,所以要有礼貌的提出更多的问题。
Answer me this, then: What turned your hair white in one night?
那么,您能告诉我,是什么事情让您的头发一夜变白呢?
And if your answer is no, your answer will be no, then you just know you can't use this equation here.
如果不是,那就不能,你就知道,你不能用这个方程了。
It might turn out if I had X-ray vision that what I see is this... Then the answer'd be there's not one train here.
有可能是,我看到的是这样。,答案就不是同一辆火车。
And that idea was, we make a guess in the middle, we test it so this is kind of a guess and check, and if the answer was too big, then we knew that we should be looking over here. If it was too small, we knew we should be looking over here, and then we would repeat.
这些有理数是有序排列的,然后我们的想法是,首先在中间取个数作为猜想数,然后对这个猜想数进行验证,如果由猜想数得到的答案太大,我们知道应该跳过,比猜想数大的那个区间,如果太小的话。
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