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由几个实数构成的哈夫曼树，共有 (16) 个结点，有 (17) 个叶结点，有 (18) 个二度结点。 17（）
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注册会计师A正在拟定对XYZ公司存货的监盘计划，由助理人员实施监盘工作，下面有关监盘计划和监盘工作有无不妥当之处若有，请予以更正(1) 注册会计师A在制定监盘计划时，应与 XYZ公司沟通，确定检查的重点；(2) 对外单位存放于XYZ公司的存货，注册会计师A未要求纳入盘点的范围，助理人员也未实施其他审计程序；(3) 对存放在露天的废钢材，助理人员未要求称量，而是到废旧物资聘请一位资深的收购员代为估量和估价；(4) XYZ公司的一批重要存货，已经被银行质押，助理人员通过电话询问了其存在性；(5) 在检查存货盘点结果时，助理人员从存货实物中选取项目追查至存货盘点记录，目的是测试部分漏盘存货。 （3）处有无不妥当之处若有，请予以更正。
阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文章中没有提及，请选择C。 Imagine eating everything delicious your want--with none of the fat. That would be great, wouldn’t it New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients(营养物) and can also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fatfree products taste good enough to keep eating. Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat the can’t be digested at all. Normally, special chemicals in the intestines(肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E, and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E, and K from being absorbed. It can also prevent the absorption of carotenoids(类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E, and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming. Olestra can pass through the intestines without being absorbed.
下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。第一篇 Part science and part natural history, ornithology(鸟类学) owes its tremendous popularity as a science and a scientific recreation to a simple circumstance that is sometimes forgotten when we weigh the eligibility(有被选资格，合适)of different kinds of animals for informal study. Birds are day animals where others, just as engaging in their way—mice, for instance—are creatures of the night. Apart from their visibility (something very much in their favor), the beauty of birds and their many appealing habits have won for them a huge fan following that has more than once tempted impatient and ill-informed laboratory biologists to dismiss ornithology as so much bird-watching—an absurdly unjust judgment that ignores the fact that ornithology has made a number of profoundly important contributions to general biology. Professional biologists are not hard put to reel off(滔滔不绝地讲) a list of distinctive contributions that ornithology has made to general biology science. They will cite, for example, Ernst Mayr’s investigations of evolution and the mechanisms of speciation (物种形成), or M. R. Irwin’s work on the immunologic performance of species of Columbidae(pigeons and doves) and of hybrids(杂交种)between them. Then again, David Lack’s studies on mortality in wild populations of birds are the most illuminating life tables of wild animals and animal demography (统计学) generally. Most important of all, perhaps is the contribution that ornithology has made to the study of animal behavior, beginning with Julian Huxley’ s classic study of the courtship habits of the great crested great and followed by Niko Tinbergen’s studies on the behavior of herring gulls. Which of the following is NOT mentioned in the first as a reason for popular interest in birds
编制一个好的程序首先要确保它的正确性和可靠性，除此以外，通常更注重源程序的 (71) 。还应强调良好的编程风格，例如，选择标识符的名字时应考虑 (72) ；在书写语句时应考虑 (73) ；在书写功能性注解时应考虑 (74) 。源程序中应包含一些内部文档，以帮助阅读和理解源程序，源程序的内部文档通常包括选择合适的标识符、注解和 (75) 。 73（）
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