搜题请搜索小程序“爱下问搜题”
问题 单项选择题

项目的( )是项目管理的核心任务。

A．成本控制
B．投资控制
C．进度控制
D．目标控制

答案

参考答案：D

解析： 项目管理的核心任务是项目的目标控制，按项目管理学的基本理论，没有明确目标的建设工程不是项目管理的对象。

单项选择题

患儿，男，1岁。突发声音嘶哑，犬吠样咳嗽，吸气性喉鸣和“三凹征”，患儿烦躁，口周发绀。查体：体温38.4℃，咽充血，吸气性呼吸困难，肺无湿啰音，间接喉镜检查可有声带肿胀，声门下黏膜呈梭形肿胀。

该患儿最主要的护理诊断/问题是( )。

A．体温升高
B．气体交换受损
C．活动无耐力
D．低效性呼吸形态
E．焦虑
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