题目内容
The word "ruts" (Line 1, Paragraph 4) is closest in meaning to ______.
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Intelligence, it 【B5】, is a high-priced option. It takes more upkeep, burns more fuel and is slow 【B6】 the starting line because it depends on learning — a(n) 【B7】 process — instead of instinct. Plenty of other species are able to learn, and one of the things they've apparently learned is when to 【B8】.
Is there an adaptive value to 【B9】 intelligence？ That's the question behind this new research. Instead of casting a wistful glance 【B10】 at all the species we've left in the dust I.Q.-wise, it implicitly asks what the real 【B11】 of our own intelligence might be. This is 【B12】 the mind of every animal we've ever met.
Research on animal intelligence also makes us wonder what experiments animals would 【B13】 on humans if they had the chance. Every cat with an owner, 【B14】, is running a small-scale study in operant conditioning. We believe that 【B15】 animals ran the labs, they would test us to 【B16】 the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really 【B17】, not merely how much of it there is. 【B18】, they would hope to study a(n) 【B19】 question: Are humans actually aware of the world they live in？ 【B20】 the results are inconclusive.
【B1】
切线为我们提供了很多价格移动可能存在的支撑线和压力线。但是，支撑线、压力线有被突破的可能，它们的价位只是一种参考，不能把它当成万能的工具。()
组合理论关于多元化原则的建议是：要有效的降低证券组合的标准差，证券组合中至少应包含10种证券。()
市场组合的系数等于1。()
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