When your child throws her spoon on the floor for the sixth time as you try to feed her, and you say, "That's enough! I will not pick up your spoon again!" the child will immediately test your claim.

当你试着喂你的孩子，而她却第六次把勺子扔到地板上时，你说：“够了！我不会再帮你捡勺子了！”，孩子会立即试探你的说辞。

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"That's enough! I will not pick up your spoon again!" the child will immediately test your claim.

“够了！我不会再拿起你的勺子了！“孩子会立即试验你的说辞。

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To test this, researchers asked 20 people to pick up marbles from water with their hands.

为了测试这一点，研究人员让20人用手从水中捡弹珠。

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And when I do this test, what I want to do, is say I'm going to pick the middle spot, and depending on the test, if I know it's in the upper half, I'm going to set my start at the mid point and the end stays the same, if it's in the front half I'm going to keep the front the same and I'm going to change the endpoint.

如果我知道目标数可能，再比中值点大的区间里，我可能就会把开始点设为中值点,而尾点不变，如果在小的那个区间里,就保持开始点不变而把尾点设为中值点，你们可以看到这儿的代码,就是这么做的,对不对？它是怎么做的？

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