问题 单项选择题

以下关于投资组合理论中的无差异曲线的叙述不正确的是( )。

A.无差异曲线一般向右上方倾斜

B.无差异曲线一般凸向右下方

C.风险厌恶程度较高的投资者,其无差异曲线就相对平缓一些

D.在平面坐标系中,无差异曲线从右下方到左上方,代表投资者的预期效用越来越大

答案

参考答案:C

解析:[分析]
风险厌恶程度较低的投资者,其无差异曲线就相对平缓一些,因此,本题中选项C的叙述是错误的。

阅读理解

阅读理解。

      The weather was fine last night. My friend named Steve and I decided to sleep in the open air. I found the sleeping bags under the bed in my room. I also packed some snacks. We could hardly wait for it to

get dark.We opened our sleeping bags and put them on the grass in front of my house.Steve and I played

some games,talked about something interesting and had a snack. In the end it got darkWe were just falling asleep when we heard something unusual.

     "Maybe it is just a small animal,” I said. Steve said nothing, but I could feel he was frightened. After I

looked around, I was sure it wasn’t an animal. It was my little brother, Tommy.

     "What are you doing here?" I asked. "You know, Tommy, you frightened us."

     "Sorry, Bill," he said. "It's hot in the room. I want to sleep outside with you."

     "Well, OK," I said. "Just come and lie down next to us."

     "Good night, Bill and Steve," said Tommy. "And thanks."

1. What did Steve and Bill decide to do last night?

_____________________________________________                                                      

2. Where did Bill find the sleeping bags?   

_____________________________________________                                                                     

3. How did Steve feel when he heard something strange?

_____________________________________________                                        

4. What did Tommy come out of the house to do? 

_____________________________________________                                                     

5. How many persons slept in the open air at last in the story?                                

_____________________________________________

单项选择题