构建证券组合的原因是降低风险，对资产进行增值保值。（）_爱下问搜题

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问题判断题

构建证券组合的原因是降低风险，对资产进行增值保值。（）

答案

参考答案：错

解析：组合管理的目标是实现投资收益的最大化，也就是使组合的风险和收益特征能够给投资者带来最大满足。具体而言，就是使投资者在获得一定收益水平的同时承担最低的风险，或在投资者可接受的风险水平之内使其获得最大的收益。

完形填空

阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上将该项涂黑。
I did very badly at school. My headmaster thought I was 1 and when I was 14 he said, “You’re never going to be 2 but a failure.” After five years of 3 jobs, I fell in love with a very nice middle-class girl. It was the beatific 4 that could have happened to me. I 5 I wanted to do something positive (积极地) with my life because I wanted to prove to 6 that what people said about me was 7 . Especially her mother, who had said to me, “Let’s 8 it, you’ve failed at everything you’ve ever done.” So I tried hard with my 9 and went to college. My first novel 10 while I was at college. After college I taught during the 11 in high schools and attended evening classes at London University, where I got a 12 in history. I became a lecturer at a college and was thinking of 13 that job to write full time 14 I was offered a part-time job at Leeds University. I began to feel proud of myself — 15 was a working-class boy who’d 16 school early, now teaching at the university. My writing career (职业) took off when I discovered my own style. Now I’m rich and 17 , have been on TV, and met lots of film stars. 18 what does it mean? I 19 wish all the people that have put me down had 20 : “I believe in you. You’ll succeed.”

D．composition

B．giving back

单项选择题

（）是利用光导纤维传输光波信号的通信方式。

A.光纤通信

B.数字通信

C.模拟通信

D.波分复用