设备安装牢固，机架垂直偏差不应大于3cm，符合设备抗震要求，必要时可采用辅助件进行加

新世界小学更新课桌椅，一张桌子65元，一把椅子35元，要买120套，共需多少元？

下列中国古代园林中属岭南类型名园的是( )。

A．何园

B．沧浪亭

C．清晖园

D．豫园

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.

やまのけしきが　えのよう（　）　きれいでした。 　

A．が

B．の

C．に

D．な

根据项目进度控制不同的需要和不同的用途，业主方和项目各参与方可以构建的项目进度计划系统不包括( )。

A．由多个相互关联的不同计划深度的进度计划组成的计划系统

B．由多个相互关联的不同计划层次的进度计划组成的计划系统

C．由多个相互关联的不同项目参与方的进度计划组成的计划系统

D．由多个相互关联的不同计划周期的进度计划组成的计划系统