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  3. October 24, 1929. Black Thursday. On this infamous day, the New York Stock Exchange was hit with chaos that quickly amounted to

October 24, 1929. Black Thursday. On this infamous day, the New York Stock Exchange was hit with chaos that quickly amounted to

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问题     October 24, 1929. Black Thursday. On this infamous day, the New York Stock Exchange was hit with chaos that quickly amounted to a 30% decline in the value of the Dow Jones Industrial Average, a benchmark index often used as a proxy in measuring the health of the American economy. This loss marked the end of the Roaring Twenties, a period of time in which many believed that the only direction for the stock market and the entire economy was up. Soon the U.S. entered into its longest and deepest economic slump, the Great Depression, and it took 25 years for the Dow Jones Industrial Average to return to its previous high.
    Few have personal memories of the 1929 crash, but the event still colors the play of cautious investors even today. In a matter of hours, thousands saw their fortunes sink,turning previous paper millionaires into destitute paupers. The illusion of easy money in the stock market for these people was shattered, replaced by a harsh reality that the fickle sentiments of the market determined the fate of their paper profits. As the value of shares in companies tumbled, so did consumer confidence, resulting in further irrational selling, causing prices to further plummet, creating a downward spiral of frenzied losses and panic.
    There were a few useful outcomes, however. Before the crash, security regulations were either lacking or rarely enforced, and stock brokers regularly hyped dubious firms. In 1934, after Congressional hearings on the problems, the Securities and Exchange Commission(SEC)was established to police Wall Street behavior and protect investors from fraud. Also, after 1929 many more economists and financial experts became interested in studying techniques for properly valuing stocks and giving advice on how to avoid financial panics. Their research has added to our knowledge about the economy and is at least partially responsible for the greater stability in many markets.
The main point of the text is______.
选项 A、the stock market crash of 1929 was an entirely positive event
B、the crash of the stock market was a foreseeable, and thus avoidable event
C、the stock market crash of 1929 resulted in short-term losses but long-term useful effects
D、the stock market crash of 1929 was the defining event of the twentieth century economics
答案C
解析 属主旨思想题。文章第一段总体介绍了1929年出现的经济危机及其影响；第二段重点介绍这次危机的负面影响；最后一段指出其正面影响。由此可知，能够概括全文中心思想的是选项C。选项A、B分别与原文第二、一段内容不符；选项D是文中第一段的部分内容，不是文章中心。
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考研英语一

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