问题
单项选择题
一般来说．标准方差越小，则投资的风险就( )。
A．越小
B．一样
C．越大
D．无关系
答案
参考答案：A
解析：此题属于了解范畴。标准方差越小，则投资的风险就容易控制，所以相对的风险就小。
搜题请搜索小程序“爱下问搜题”
一般来说．标准方差越小，则投资的风险就( )。
A．越小
B．一样
C．越大
D．无关系
参考答案：A
解析：此题属于了解范畴。标准方差越小，则投资的风险就容易控制，所以相对的风险就小。
| 完形填空。 | ||||
| I was sure that I was to be killed. I became terribly nervous. I searched in my pockets to see if there were any cigarettes, which had 1 their search. I found 2 and because of my shaking hands, I could 3 get it to my lips. But I had no matches, they had taken those. I looked 4 the bars at my jailer (看守监狱的人). He did not make eye contact with me. I 5 to him "Have you got a light?" He looked at me, shrugged and came over to light my cigarette. 6 he came close and lit the match, his eyes inadvertently (无意中) locked with mine. At that moment, I 7 . I don't know why I did that. Perhaps it was 8 , perhaps it was because, when you get very close, one to another, it is very 9 not to smile. In any case, I smiled. In that instant, it was 10 a spark jumped across the gap between our two hearts, our two human souls. I know he didn't want to, but my smile leaped through the bars and generated smile on his lips, too. He lit my cigarette but 11 , looking at me directly in the eye and continuing to smile. I 12 smiling at him, now aware of him as a (n) 13 and not just a jailer. And his looking at me seemed to have a new 14 too. "Do you have kids?" he asked. "Yes, here, here." I took out my wallet and nervously fumbled for the 15 of my family. He, too, took out the pictures of his family and began to talk about his plans and hopes for them. My eyes filled with tears. I said that I feared that I'd never see my family again, never have the chance to see them grow up. Tears came to his eyes, too. 16 without another word, he 17 my cell (牢房) and silently led me out. Out of the jail, quietly and by back routes, out of the town. There, at the edge of town, he released me. And without another word, he turned back toward the town. "My life was 18 by a smile." Yes, the smile-the unaffected, unplanned, 19 connection between people. I really believe that if that part of you and that part of me could 20 each other, we wouldn't be enemies. We couldn't have hate or envy or fear. | ||||
|