题目:
电缆耐压试验过程中,作业人员自身应当做好哪些防护措施?
答案:
参考答案:作业人员应戴好绝缘手套并穿绝缘靴或站在绝缘垫上。
电缆耐压试验过程中,作业人员自身应当做好哪些防护措施?
参考答案:作业人员应戴好绝缘手套并穿绝缘靴或站在绝缘垫上。
与维生素B12吸收有关的内因子是下列哪种细胞产生的()
A.胃G细胞
B.胃壁细胞
C.胰α细胞
D.胰β细胞
E.小肠上皮细胞
Land, unlike labor and capital, has a special feature: It is in strictly fixed supply in total. Because of this, we say that its price is demand-determined. In other words, the price of land is determined completely by what families and firms are willing to pay for it. But not all the land is the same. Some land is more valuable than other land. The value of land to a potential user may depend upon the characteristics of the land itself or upon its location.
Consider the potential uses of a piece of land in a suburb of Kansas City, Allan wants to build a clothing store in that place. He estimates that he can earn economic profits of $ 10,000 per year there because of the land’s excellent location. Bella, another person interested in buying the comer, believes that she can earn $ 35,000 in economic profits if she builds a drug store there. Clearly, Bella will be more likely to get the land.
Because location is often the key to profits, ‘landowners are frequently able to squeeze their renters. One of the most popular locations in the Boston area, for example, is Harvard Square. There are dozens of restaurants in and around the square, and most of them are full most of the time. Despite this seeming success, most Harvard Square restaurant owners are not getting rich, because they must pay very high rents for the locations of their restaurants. A large part of the restaurant’s revenues goes to rent the land.
Although the supply of land is generally perfectly fixed, the supply of land in a given use may not be so. As the population of a city grows, housing developers find themselves willing to pay more and more for land. As land becomes more valuable for development, some farmers sell out, and the supply of land that can be used for development increases.
5. What’s the difference between land and other resources?
A. Land’s supply is strictly fixed. B. The prices of other resources are lower.
C. Land can’t be used up. D. Land is more useful.
6. Which of the following can’t determine the price of a piece of land?
A. Its location. B. Its purchasers’ purpose.
C. The total amount of its supply for general use. D. Its features.
7. Which of the following is wrong according to the passage?
A. The price of a piece of land is changeable.
B. The profit of a shop is often determined by its location.
C. Most Harvard Square restaurant owners would be getting rich, if they paid lower rents for the locations of their restaurants.
D. The supply of land for development might fall down.
8. Which of the following can be the best title of the passage?
A. The Use of Land B. The Natural Resources
C. The Land Market D. The Land Development
气香浓烈,味甜、辣的饮片是()
A.黄柏
B.牡丹皮
C.秦皮
D.香加皮
E.肉桂
患者,女性,35岁,胆道感染。保守治疗中,患者出现阵发性寒战、高热、面色潮红、呼吸急促、腹泻。行血液细菌培养,最佳的采血时间是
A.发热高峰时
B.腹泻缓解后
C.寒战前
D.寒战时
E.呼吸平稳后
以下关于面向对象程序集成测试的说法中,错误的是
A) 夹层式集成实际上是综合采用自底向上集成和自顶向下集成
B) 高频集成是以自底向上集成为基础,利用冒烟测试进行的集成测试
C) 面向对象程序的协作集成是指优先集成有密切协作关系的类
D) 自底向上集成和自顶向下集成都需要为集成测试开发大量代码