问题
单项选择题
Which of the following statements can be inferred from the passage a. An investor of trading stocks only cares about the fixed assets of companies. b. A buyer of investing stocks is always concerned about the performance of companies. c. Most people keep their investing stocks for a longer period of time. d. All people buy trading stocks and investing stock at the same time.
答案
参考答案：C
解析：[听力原文]Which of the following statements can be inferred from the passage
[分析]： 事实细节的找寻和判断。 关于交易股和投资股的知识，原文一开始给予介绍，从第一段第二句可知，交易股的持有的时间为几周甚全几大，后面文中使用表示对比的信号词“by contrast”过渡到投资股的介绍，由此可判断，投资股持有的时间必定不会短。因此，选项c的说法与原文意思相符，是正确答案。[解题关键] 通过信号词判断上下文的语义逻辑关系，有助于解题，如通过by contrast可判断其上下文是对比关系。