题目内容
现金的短缺成本与现金的持有量成反比例变化。( )
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Passage OneQuestions 26 to 28 are based on the passage you have just heard.
In the last ten years, the Internet has opened up incredible amounts of information to ordinary citizens. But using the Internet can he like walking into a library where the books are all lying on the floor in piles. While tools like Google allow some structured search, much of the data from such searches is outdated or of questionable value. Some web enthusiasts have taken up the task of organizing information through a democratic means that only the Internet allows: an encyclopedia of the people, by the people, and completely free to copy and distribute.This ‘people’s encyclopedia’ of the Web — a free site called Wikipedia — has provided a unique solution by inviting individuals to participate in the process of rationalizing and updating web content. At the heart of this movement are wikis, web sites that allow users to directly edit any web page with one click of the mouse.Wikipedia — the largest example of these collaborative efforts — is a functioning, user-contributed online encyclopedia that has become a popular and highly regarded reference in just three years of existence. The goal of Wikipedia was to create an encyclopedia that could he shared and copied freely while encouraging people to change and improve the content. Each and every article has an “Edit this page” button, allowing anyone, even anonymous passersby, to add or delete any content on the page. It seems like a recipe for disaster and chaos, but it has produced surprisingly credible content that has been evaluated and revised by the thousands of international visitors to the site. For many, it finally realizes the original concept of World Wide Web creator Tim Berners-Lee — an online environment where people not only browse content, but freely and actively exchange information.The Wikipedia project was started by Jimmy Wales, head of Internet startup Bomis.com, after his original project for a volunteer, hut strictly controlled, free encyclopedia ran out of money and resources after two years. Editors with PhD degrees were at the helm of the project then, but it produced only a few hundred articles. Not wanting the content to languish, Wales placed the pages on a wiki website in January 2001 and invited any Internet visitors to edit or add to the collection.The site became a runaway success in the first year and gained a loyal following, generating over 20,000 articles and spawning over a dozen language translations. After two years, it had 100,000 articles, and in April 2004, it exceeded 250,000 articles in English and 600,000 articles in 50 other languages. Over 2,000 new articles are added each day across all the various languages. And according to website rankings at Alexa.com, it has become more popular than traditional online encyclopedias such as Britannica.com and is one of the top 600 most heavily visited websites on the internet. The author called Wikipedia ‘people’s encyclopedia’ because（）
投资与投机两者的未来收益都带有不确定性，都包含有风险因素，都要承担本金损失的危险。( )
黄某于2009年购置了一套底层三室一厅的商品住宅，2010年改作餐馆，并补交了土地使用权出让金，办理了产权证变更手续。2012年黄某为转让该房地产，要求评估其现时市场价值。因当地无类似餐馆的可比实例，故估价人员首先采用了收益法估价(估价依据正确)，估值40万元。然后，再将该估价对象视为住宅采用了市场法估价，估值50万元。由此确定最终估价结论为(40+50)÷2=45(万元)。请问：这样确定估价结论是否正确为什么
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