在一个较长时期的时间数列中，对数列数值影响最大的因素是（）。A、长期趋势 B、季节变动

下列各句，没有语病，句意明确的一句是：（ ） 

A他马上召集常委会进行研究，经一安排了现场会的内容、时间和出席人员，以及会议中应注意的问题。 

B某工厂以技术进行为动力，不断致力于新产品、新技术、新工艺、新材料的研制开发。 

C当前和今后一个相当行的时间内，每年进入劳动年龄的人口数据很大，安排城镇青年劳动力就业是一次相当繁重的任务。 

D在古代，这灯音乐作品只有文字记载，没有乐谱资料，即无法演奏，也无法黉唱。 

—When is your birthday?

—_____.[ ]

A. I was born in 1994.

B. I was born in Shanghai.

C. It's on 8th August.

D. I have a birthday party every year.

唐朝的长安城布局及形态体现了()思想。

A．强调皇权，维护传统的社会等级和宗教礼法

B．周礼制为主

C．尊重自然、因地制宜为主，兼具强调皇权、周礼制

D．强调皇权、因地制宜为主，兼具尊重自然、周礼制

E．尊重自然、周礼制为主，兼具强调皇权、因地制宜

以下不属于特殊地域管辖的是（）。

A.因不动产提起的诉讼而由不动产所在地人民法院管辖的

B.因限制人身自由提起的诉讼而由原告所在地人民法院管辖的

C.复议机关改变原具体行政行为而由复议机关所在地人民法院管辖的

D.因管辖发生争议而由共同上级法院指定管辖的

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.