正确答案: D

以上阐述均不正确

题目：以下关于消费函数与储蓄函数的变量之间的关系阐述不正确的是( )。

解析：[分析] 由于储蓄被定义为收入和消费之差，因此消费函数(C)与储蓄函数(S)之和一定等于总收入(Y)，用公式表示就是：

查看原题

举一反三的答案和解析：

[多选题]关于脑动脉粥样硬化的描述，正确的是

引起动脉瘤形成

引起脑血栓形成

引起脑萎缩

[多选题]琥珀酰CoA的代谢去路有

氧化生成CO2、H2O

参与酮体氧化

合成血红素

解析：

133．答案：ACD

[考点] 糖、脂代谢及血红素合成

[分析] 琥珀酰CoA可沿三羧酸循环转变成草酰乙酸，然后经磷酸烯醇式丙酮酸羧激酶催化生成磷酸烯醇式丙酮酸，后者经丙酮酸转变为乙酰CoA，其进入三羧酸循环被彻底氧化为CO2和H2O。琥珀酰CoA在琥珀酰CoA转硫酶作用下将辅酶A转给乙酰乙酸(酮体)使其活化为乙酰乙酰CoA，后者硫解生成两分子乙酰CoA，经三羧酸循环被彻底氧化。合成血红素的基本原料是琥珀酰CoA、甘氨酸和Fe2+。但琥珀酰 CoA不能转变为亚油酸，其为必需脂肪酸，体内不能合成，必须从食物摄取。

[多选题]洋地黄中毒常见的诱因是

洋地黄过量

肾功能不全者

过度利尿低血钾症者

心脏极度扩大者

解析：

ABCD

[单选题]特殊侵权民事责任和一般侵权民事责任的构成要件的区别在于

不要求行为人主观上有过错

[单选题]Passage 4 The world is going through the biggest wave of mergers and acquisitions ever witnessed. The process sweeps from hyperactive America to Europe and reaches the emerging countries with unsurpassed might. Many in these countries are looking at this process and worrying:“Won't the wave of business concentration turn into an uncontrollable anti-competitive force?"

There's no question that the big are getting bigger and more powerful. Multinational corporations accounted for less than 20% of international trade in 1982. Today the figure is more than 25% and growing rapidly. International affiliates account for afastgrowing segment of production in economies that open up and welcome foreign investment. In Argentina, for instance, after the reforms of the early 1990s, multinationals went from 43% to almost 70% of the industrial production of the 200 largest firms. This phenomenon has created serious concerns over the role of smaller economic firms, of national businessmen and over the ultimate stability of the world economy. I believe that the most important forces behind the massive M&A wave are thesame that underlie the globalization process: falling transportation and communication costs, lower trade and investment barriers and enlarged markets that require enlarged operations capable of meeting customers' demands. All these are beneficial, not detrimental, to consumers. As productivity grows, the world's wealth increases. Examples of benefits or costs of the current concentration wave are scanty. Yet it is hard to imagine that the merger of a few oil firms today could recreate the same threats to competition that were feared nearly a century ago in the U.S., when the Standard Oil trust was broken up. The mergers of telecom companies, such as World Com, hardly seem to bring higher prices for consumers or a reduction in the pace of technical progress. On the contrary, the price of communications is coming down fast. In cars, too, concentration is increasing — witness Daimler and Chrysler, Renault and Nissan — but it does not appear that consumers are being hurt. Yet the fact remains that the merger movement must be watched. A few weeks ago, Alan Greenspan warned against the megamergers in the banking industry. Who is going to supervise, regulate and operate as lender of last resort with the gigantic banks that are being created? Won't multinationals shift production from one place to another when a nation gets too strict about infringements to fair competition? And should one country take upon itself the role of “defending competition" on issues that affect many other nations, as in the U.S. vs. Microsoft case? 第63题：What is the typical trend of businesses today?

to combine and become bigger

解析：选［C］。文章的第一句即为本题提供了答案。原文中的mergers and acquisitions(合并与兼并)换成了被选项中的combine and become bigger。

[单选题]The 4th paragraph suggests that

teachers should pay attention to all of their students.

[单选题]有关大脑两半球功能单侧化的研究表明，大多数人的言语活动中枢在

大脑左半球

[单选题]以下投资业绩评估指标中，是建立在资本资产定价模型基础上的资产组合平均收益的是( )。

詹森测度

解析：[分析]

[单选题]马克思主义政治经济学研究的出发点是（ ）

物质资料生产

解析：马克思主义政治经济学研究的出发点是物质资料生产，研究的对象是生产关系，研究资本主义经济的出发点是商品，而研究社会资本运动的出发点则是社会总产品。