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问题 单项选择题 A1型题

间接固体安放的位置与哪条线有关 （）

A.支点线

B.观察线

C.导线

D.支持线

E.外形高点线

答案

参考答案：A

解析：支点线是指起支点作用的牙合支托连线。从间接固位体到支点线的垂直距离最好能等于或大于从鞍基远端到支点线的垂直距离。

材料分析题

很多大中城市为提高居民生活质量纷纷修建面积巨大的广场。某地级市城建部门向市政府建议也修建一个大型广场，结果引起争议。

（1）围绕广场该不该修建这一问题，你认为市政府应怎样进行科学决策？

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（2）假如你是该市市民，你将会通过哪些方式或渠道反映你的建议？

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单项选择题

Combining a risk-free asset with a portfolio of risky assets results in all of the following EXCEPT:（）

A. the standard deviation of the expected return for the newly created portfolio is the linear proportion of the standard deviation of the risky asset portfolio and the expected return for the newly created portfolio is the weighted average of the return on the risk-free asset and the expected return on the risky asset portfolio. 

B. the efficient frontier becomes the line that connects the point in the risk-return plane representing the risk-free asset, with the point representing the risky asset portfolio. 

C. all risk-return combinations between the risk-free asset and the risky asset portfolio can be represented by a straight line that connects the point in the risk-return plane representing the risk-free asset, with the point representing the risky asset portfolio.
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