在风险因素取值专家评定法中，要计算出期望值，必须首先对( )进行调查。
A．风险因素的最乐观估计值
B．风险因素的最悲观估计值
C．风险因素的平均估计值
D．风险因素的最可能值
E．风险因素的平均值
参考答案：A,B,D
解析：《投资项目可行性研究指南》提出了一种风险因素取值专家评定法，它是一种专家定量评定方法，是就风险因素的最乐观估计值、最悲观估计值和最可能值向专家进行调查，计算出期望值，再将期望值的平均值与可行性研究中所采用的数值(以下简称可研采用值)相比较，求得两者的偏差值和偏差程度，据以判别风险程度。
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| It's a 1 Sunday morning. Mr and Mrs Green are going to the People's Park with 2 daughter, Ann. At 8 o'clock they go to the park 3 bus. On the bus there are a lot of people, men, women and 4 . Some are Americans. Some are 5 . Others are Japanese. They are going to 6 , too. There are 7 Chinese on the bus. One is a woman. She's driving the bus. The other is a teacher in a middle school. He 8 English very well. He's now talking about the park. The people are 9 him. They want to get there quickly. They hope to 10 there today! | ||||||||||||
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