第19题: [单项选择]The example given in Para. I shows that dreams often _______. A. assume a symbolic nature B. help us to master physical skill C. represent some difficulties we have in life D. remind us of what we forget in waking life 参考答案:A 答案解析:[解析] 事实细节题。第一段第五句解释了例子中瓶子和瓶盖的象征含义,由此可以推断出我们的梦通常是具有象征性的。