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操作系统主要是对计算机系统中的全部软硬件资源进行管理，以方便用户提高计算机使用效率的一种系统软件。它的主要功能有：处理机管理、存储管理、 (28) 、作业管理、 (29) 。Windows是一个具有图形界面的 (30) 系统软件。UNIX操作系统基本上是采用 (31) 语言编制而成的系统软件。在 (32) 操作系统的控制下，计算机能及时处理由过程控制反馈的信息并作出响应。 30（）
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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。 （4）处有无不妥当之处若有，请予以更正。
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（）
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.
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