me members of the exchanges.
Today, however investing through security exchanges and trading on commodity exchanges has been made safer by regulations set up by the exchanges themselves and by regulations of the United States government. In 1922, the government instituted the Commodity Exchange Commission which operates though the Department of Agriculture; and in 1934, the Securities and Exchange Commission, to protect investors and the public against dishonest practices on the exchanges. ________________________________________
1. Security and commodity exchanges are meeting places for buyers and sellers of ______.
A . all of these B . grain C . securities D . stocks
正确答案:all of these
题目详解:根据第一段文章中的第一句\posts where people meet who wish to buy or sell\的提示。判断出与选项中的\of these\语义相关。
2. A sudden, sharp decline in the value of securities is called ______. A . a crash
B . a speculation C . investing D . a trade
正确答案:a crash
题目详解:依据问题中\sudden, sharp decline in the value of securities\的提示，从第3段第4句中的\sudden, sharp decline in the value of securities\的提示。判断出与选项中的\crash\语义相关。
3. Among the reasons for the Crash of 1929 were ______.
A . unwise speculation by many people and dishonest practices by some businessmen
B . dishonest practices by some businessmen C . unwise speculation by many people
D . strict regulations of the Commodity Exchange Commission
正确答案:unwise speculation by many people and dishonest practices by some businessmen
题目详解:依据问题中\reasons for the Crash of 1929\的提示，从第四段最后一句中的\and unwise speculation by many people and dishonest practices on the part of some businessmen and of some members of the exchanges.\的提示。判断出与选项中的\speculation by many people and