搜题请搜索小程序“爱下问搜题”
问题 单项选择题

我国在邓 * * “一国两制”思想的指导下，成功地收复了香港和澳门，成为解决类似历史问题的成功范例。这个事实表明：

A．一种矛盾只能用一种方法来解决

B．解决矛盾的形式可以而且应该多样化

C．资本主义生产关系和社会主义生产关系在一个国家内能够和平共处，但是大概只能保持五十年左右

D．“一国两制”的思想是真理，可以适用于一切类似历史问题的解决

答案

参考答案：B

单项选择题

IP地址每个字节对应一个十进制数，其取值范围是( )。

A．0～255

B．1～256

C．0～127

D．1～128
查看答案
填空题

The central problem of economics is to satisfy the people’s and nation’s wants. The problem we are faced with is that our (1) , here identified as money, are (2) . The only way we can resolve our (3) is to make choices. After looking at our resources, we must examine our list of (4) and identify the things we need (5) , those we can postpone, and (6) we cannot afford. As individuals, we face the central problem involved in economics — deciding just how to allocate our limited resources to provide ourselves with the greatest (7) of our wants.
Nations face the same problem. As a country’s population (8) , the need for more goods and services grows (9) . Resources necessary to production may increase, but there are (10) enough resources to satisfy the total desires of a (11) . Whether the budget meeting is taking place in the family living-room, in the conference room of the corporation (12) of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find (13) of allocating limited resources in order to satisfy unlimited wants.
A short time ago, economists divided goods into two categories, free and economic. The former, like air and water, were in (14) abundance that economists had no concern about (15) of scarcity and what to do about it. Today many of these "free goods" are in (16) very expensive to use. Pollution has made clean air and water expensive for producers who have to filter their waste products, for consumers who ultimately pay for the producers’ extra costs, and (17) tax-payers who pay for the government’s involvement in cleaning the environment.
In the 1990s, almost all goods are (18) . Only by effort and money can they be (19) in the form people wish.
Meeting the needs of people and the demands from resources available leads to the basic activity of production. In trying to (20) unlimited wants from limited economic goods, production leads to new problems in economics.
查看答案