单选题如果一国的国内生产总值大于国民生产总值，则国外净要素收入( )。

单选题在国民收入核算账户中，不能列入投资项目的是( )。

单选题Short of money? Need an instant loan? Since the early 1990s your best bet has been to go to the low-rent end of town and find an appointed loan-shop. There you can borrow money in small amounts, generally not much more than $500, against your post-dated pay-cheque. You will be charged around $15 interest for every $100 you borrow--and that is per month. For many people, there is no alternative. Banks refuse to make small loans because there is no money in it, and completely unregulated lending, via the internet or loan sharks, is too alarming. According to the Community Financial Services Association, an advocacy group for the industry, most borrowers are responsible and pay off their loans in a timely manner. But some don't. The Centre for Responsible Lending, a consumer group, says that many borrowers routinely roll over their loans. This quickly brings them into debt traps. A typical borrower may end up paying $793 for a $325 loan. The centre estimates that payday loans cost Americans $4.2 billion a year in interest and fees. The industry thrives, in large part, because it operates mostly outside state usury laws that prohibit excessive interest rates. Its spokesmen say lenders need such exemptions to make a profit on their basic service, small loans. Lenders say that their returns would amount to pennies on the dollar if interest rates were capped. In fact, they say, such restrictions would put them out of business. And that is exactly what many of their opponents would like to see--particularly when it comes to loans made to the families of soldiers. In one of the last acts of the Republican Congress, payday lenders were restricted to interest rates of 36% on loans to military personnel and their spouses. The Pentagon is worried that uniformed personnel, especially those serving in Iraq, have been losing their security clearances because of excessive debt at home. This, among other things, was leading to the costly reassignment of highly trained troops, such as communications experts, to ordinary low-skill jobs. Robert Frank, an economist at Cornell University, wrote recently in the New York Times that the industry -- not unlike the sub-prime mortgage sector -- is a beneficiary of the sweeping deregulation of the financial-services industry that has made credit more accessible. Its adverse consequences, he says, were" completely predictable". Once poor people get in over their heads, they will borrow themselves into bankruptcy if the law permits; and" if we are unhappy about that, the only solution is to change the rules./

单选题在下列情况中应该计入当年国民生产总值的是（ ）

单选题设y=y(x)由方程x3-ax2y2+by3=0确定，且y(1)=1，x=1是驻点，则______．A．a=b=3B．C．D．a=-2，b=-3

单选题若两种商品X和Y的需求交叉价格弹性系数为-3，则( )。

单选题桓公问：“为何说寡人读的是古人的糟粕?”轮扁说：“依我的经验看，斫车轮，轮孔做得稍大就松滑而不坚固，做得稍小就滞涩难入，要想做得不大不小，不松不紧，必须得之于心而应之于手。有高超的技术存在其中，却无法用语言传达，我无法教给我儿子，所以，我都七十岁了还得斫轮。古人已经死了，他们所不能言传的精华也跟着消灭了，那么您所读的就是古人的糟粕了。” 以下哪一项陈述是轮扁的议论所依赖的假设?

单选题生产可能性曲线是指( )。

单选题下列命题中，正确的是______．

单选题某消费者对商品X的消费达到饱和点时，则边际效用MUx为（ ）。

单选题标准的新古典生产函数( )。

单选题失业率是指失业人数在( )人数中所占的比例。

单选题疾病预防控制中心的研究报告认为，烟草使用是首要的可预防死因。每年全世界有500万人死于烟草相关疾病，其中每年死于二手烟的人数高达60万，1/4以上为儿童。 以下各项如果为真，哪一项最不能质疑上述观点?

单选题在IS和LM曲线的交点处，( )。

单选题已知随机变量X服从二项分布且E(X)=2.4，D(X)=1.68，则二项分布的参数n，p的值为______．

单选题扩张性财政政策对经济的影响是（ ）

单选题消费者预算线发生平移时，连结消费诸均衡点的曲线称为（ ）。

单选题根据托宾的“q”理论，如果q值大于1，则（ ）

单选题小麦歉收导致小麦价格的上涨，下列说法中正确的是( )。

单选题脐带血指胎儿娩出，脐带结扎并离断后残留在胎盘和脐带中的血液，其中含有的造血干细胞对白血病、重症再生障碍性贫血、部分恶性肿瘤等疾病有显著疗效，是人生中错过就不再有的宝贵的自救资源。父母为新生儿保存脐带血，可以为孩子一生的健康提供保障。以下陈述如果为真，除哪一项外，都能削弱上述结论?