[单选题]（    ）是减少和防止高处坠落和物体打击事故发生的重要措施。
A. 安全帽、安全带、安全网  
B. 安全帽、防滑鞋、安全带
C. 防滑鞋、紧口工作服、安全网

Many people invest in the stock market hoping to find the next Microsoft and Dell. However, I know (1) personal experience how difficult this really is. For more than a year, I waw (2) hundreds and sometimes thousands of dollars a day investing in the market. It seemed so easy, I dreamed of (3) my job at the end of the year, of buying a small apartment in Paris, of traveling around the world. But these dreams (4) to a sudden and dramatic end when a stock I (5) , Texas cellular pone wholesaler, fell by more than 75 percent (6) a one year period. On the (7) day, it plunged by more than $ 15 a share. There was a rumor the company was (8) sales figures. That was when I leamed how quickly Wall street (9) companies that misrepresent the (10) .
In a (11) , I sold all my stock in the company, paying (12) margin debt with cash advances from my (13) card. Because I owned so many shares, I
A. trade
B. truth
C. lie
D. lies