下列关于风险分析中解析法和蒙特卡洛法的表述中，正确的是（）。
A.解析法对随机的现金流进行概率分布估计，得到净效益的概率分布
B.蒙特卡洛法用数学方法在计算机上模拟实际概率过程，然后加以统计处理
C.解析法建立在利用德尔菲法进行风险辨识与估计的基础之上
D.蒙特卡洛法主要用于解决不多于2～3个随机变量的风险问题，而解析法能够分析更多个随机变量的风险问题
E.解析法主要用于解决不多于2～3个随机变量的风险问题，蒙特卡洛法能够分析更多个随机变量的风险问题。
参考答案：A, B, C, E
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| It was the golden season . I could see the yellow leaves 1 on the cool 2 . In such a season, I liked walking alone in the leaves, listening to the sound of them. Autumn is a 3 season and life is uninteresting. The free days always get me 4 . But one day, the sound of a violin 5 into my ears like a stream flowing in the mountains. I was so surprised that I jumped to see what it was. A young girl, standing in the wind, was 6 in playing her violin. I had 7 seen her before. The music was so attractive(有吸引力) that I listened quietly. Lost in the music, I didn't realize that I had been 8 there for so long but my 9 did not seem to disturb(打扰) her. Leaves were still falling. Every day she played the violin in the corner of the building 10 I went downstairs to watch her performance. I was the only audience. The autumn seemed no longer lonely and life became 11 . 12 we didn't know each other, I thought we were already good friends. I believed she also liked me . Autumn was nearly over. One day, when I was listening devotedly, the sound suddenly stopped. To my 13,the girl came over to me. " You must like violin," she said. "Yes. And you play very well. Why did you stop?" I asked. Suddenly, a 14 expression appeared on her face and I could feel something unusual. "I came here to see my grandmother, but now I must leave. I once played very badly. It was your listening every day that 15 me. " she said. "In fact, it was your playing 16 gave me a meaningful autumn." I answered. "Let us be friends." The girl smiled and I smiled. I never heard her play again in my life. I no longer went downstairs to listen like before. Only thick leaves were left behind. But I will always remember the fine figure of the girl. She is like a 17 ; so short, so bright, like a shooting star giving off so much light that it makes the autumn beautiful. There are many kinds of friends. Some are always 18 you, but don't understand you. Some say only a few words to you, but are close to you. Many people will step in your life, but only 19 friends leave footprints(脚印). I shall always recall the autumn and the girl with the 20 . She will always bring back the friendship between us. I know she will always be my best friend. | ||||
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