马柯威茨投资组合理论的主要缺陷是( )。 A.当证券数量较多时,基本输入所要求的估

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问题:

马柯威茨投资组合理论的主要缺陷是( )。

A.当证券数量较多时,基本输入所要求的估计量非常大

B.解的不稳定性

C.数据误差带来的解的不可靠性

D.重新配置的高成本

考点:保险代理人考试证券投资基金证券业从业资格
题型:多项选择题

如图所示为某宾馆的房卡。只有把房卡插入槽中,房间内的灯和插座才能有电。房卡的作用相当于一个     接在干路上,其作用是          。房间里有电灯、电视等用电器,它们是     联的。

题型:多项选择题

以下叙述中正确的是______。

A.预处理命令行必须位于C源程序的起始位置

B.在C语言中,预处理命令行都以“#”开头

C.每个C程序必须在开头包含预处理命令行:#include

D.C语言的预处理不能实现宏定义和条件编译的功能

题型:多项选择题

In its more extreme forms persecution mania is a recognized

form of insanity. Some people imagine that others wish to kill

them, or imprison them, or to do them some other grave injury.

Often the wish to protect themselves from imaginary persecutors   (1)______

leads them into acts of violence which make it necessary to restrain

their liberty. This, like many other forms of insanity, is

only an exaggeration of tendency not at all uncommon among      (2)______

people who count as normal. I do not propose to discuss

the extreme forms, that are a matter for a psychiatrist.       (3)______

It is the milder forms that I wish to consider, since they      (4)______

are a very frequent cause of unhappiness, and because, not having

gone much far as to produce definite insanity, they          (5)______

are still capable of being dealt by the patient himself,       (6)______

provided he can be induced to diagnose his trouble

right and to see that its origin lies within himself and        (7)______

not in the supposed hostility and unkindness of others.        (8)______

We are all familiar with the type of person, man or woman,

who, according to his own account, is perpetually the victim

of ingratitude, unkindness, and treachery. People of such kind     (9)______

are often extraordinarily plausible, and secure warm sympathy

from those who have not known them long. There

is, as a rule, nothing inherently improbable about every separate    (10)______

story that they relate.

8()

题型:多项选择题

通常第一级冷却到30-35℃,二级冷却到()

A、25℃-30℃

B、20℃-25℃

C、15℃-20℃

D、10℃-15℃

题型:多项选择题

简述早期行为科学理论的基本观点。

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