第15题: [多项选择]无差异曲线是对一个特定的投资者而言，根据他对期望收益率和风险的偏好态度，按照期望收益率对风险补偿的要求，得到的一系列满意程度相同的（或无差异）证券组合的均值方差（或标准差）在坐标系中所形成的曲线。无差异曲线满足下列（）特征。 A. 无差异曲线向左上方倾斜 B. 无差异曲线向右上方倾斜 C. 无差异曲线的位置越高，其上的投资组合带来的满意程度就越高 D. 无差异曲线之间互不相交 参考答案:B, C, D 答案解析:
第30题: [简答题]你(Li Yuan，TeL:78790765)刚从海边度假回来，对旅行社所定的旅馆及其服务不满意。因此决定给该旅行社的经理写封抱怨信。信的内容包括： (1)说明不满意的具体事件。 (2)提出改进建议或赔偿要求。 参考答案:
Dear Manager,
I am writing this letter to make a complaint.
I am one of your customers who were just back from the seven-day trip to Hainan. I was totally disappointed by the very unhappy stay we experienced in the hotel you reserved for us. First, it is long distance to the seaside from the hotel. It took us B0 m
I strongly suggest:
A. Rent a bus specially for travelers.
B. Move the bar out of the hotel.
Look forward to hearing from you.
Yours,
Li Yuan
Tel. GHGI0GFE
第31题: [单项选择]Questions 144-146 refer to the following notice. Season tickets for this year’s symphony are going on sale next month and we wanted you to be among the first to know.A. could force B. could have forced C. could be forced D. could have been forced 参考答案:C 答案解析:这句话的意思是说，若没有您的支持，Arrington交响乐团的员工将在25周年庆典之前被迫退休。考查对一般将来时的虚拟语气及force一词的被动用法。
