题目内容
个人所得税法对不同项目所得,规定了不同的税率形式,其中对工资、薪金所得和个体工商户的生产经营所得采取了超额累进税率,对其他所得项目则一律采用比例税率。()
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根据我国破产法的有关规定，科技管理等行政部门通过签订合同，按有偿使用，定期归还原则发放的款项不属于破产债权。()
【B20】
竞争市场环境分析的主要目的是()。
Every animal is a living radiator(散热器) -- heat formed in its cells and given-off through its skin. Warm-blooded animals keep a normal temperature by continuously replacing lost surface heat; smaller animals, which have more skin for every ounce (盎司) of body weight, must produce heat faster than bigger ones. Because small animals burn fuels faster, scientists say they live faster. The speed at which an animal lives is determined by measuring the rate at which it uses oxygen (氧气). A chicken, for example, uses one-half cubic (立方的) centimeters of oxygen every hour for each gram it weighs. Because it uses oxygen eight times as fast, it is said that the mouse is living eight times as fast as the chicken. The smallest of the warm-blooded animal, the humming-bird, lives a hundred times as fast as an elephant. There is a limit to how small a warm-blooded animal can be. A bird that weighs only two and a half grams would starve to death. It would burn up its food too rapidly and would not be able to eat fast enough to supply itself more fuel.
The passage says that every animal is a living radiator because it ______.
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