单项选择题

Choosing a Topic for Research   Because you are going to put a lot of your time and energy into your research project, the topic is especially important. In many instances your instructor may give a specific topic. If this is done, you have little choice, but most instructors will permit or even welcome a slightly changed focus in a topic if it is supported by good thinking.   In some of your classes, the instructor may present a suggested list of several topics from which you are to make a choice. If this is done, do not simply select the first idea that attracts your attention. It may be one with which you will soon become bored, or it may be one on which you would have difficulty finding all the necessary information. Looking at the topics, try to consider how you might go about developing each of them. When you find out what seems especially interesting and worthwhile, do a bit checking in the library to see if you can get the basic resources you will need.   Choosing a good research topic does not necessarily mean finding something that has a lot written about it. Many times you will have to research around a topic in order to find out the most useful information. Exciting and original topics often come to mind by combining two completely different interests. Let us say that you are interested in child psychology and in sports. Perhaps you can combine these into a study of the effect that is watching on the subject, you can research the topic individually and, by putting your information together, then draw a conclusion.

A.Right
B.Wrong
C.Not mentioned
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单项选择题
The Role of Governments1 Governments determine the legal framework that sets the basic meets for the ownership of property and the operation of markets. In addition, governments at all levels regulate economic behavior, setting detailed rules for the operation of businesses. Such regulations apply to all businesses; examples include laws against fraud and racial discrimination.2 Governments buy and produce many goods and services, such as defense, education, parks and roads, which they provide for firms and households. They typically buy computers but write programs they need to operate them. Governments also produce and sell goods. In many countries the phone company is government-owned, like the electric system.3 Governments also make transfer payments, such as Social Security and unemployment benefits to individuals. Transfer payments are payments for which no current economic goods or service is provided in return and therefore do not represent expenditure for the purchase of final products. A firefighter’s salary is not a transfer payment, but welfare benefits are.4 Governments pay for the goods they buy and for the transfer payments they make mostly by collecting taxes, including personal income taxes, property taxes, social insurance taxes, and sales taxes. Over 60% of the government revenue in the U.S. is collected by the federal government. This does not include taxes collected by state and city government.5 Every market economy suffers from business cycles. Governments, through their control of taxes and government spending and through their ability to control the quantity of money, often attempt to modify fluctuations in the business cycle. For instance, the government may reduce taxes in a recession in the hope that people will increase spending and thus raise the GNP.
A.Collecting Taxes
B.Making Transfer Payments
C.Making Laws and Regulations
D.Buying and Selling Goods and Services
E.Stabilizing the Economy
F.Controlling the Market