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【单选题】
在BUCK斩波电路中,开关频率与电感电流断续的关系是什么?
A.
开关频率越高,电感电流越不容易断续
B.
开关频率越高,电感电流越容易断续
C.
开关频率与电感电流是否断续无关
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【单选题】A user’s workstation currently has four connected IDE devices. Which of the following could be added to the workstation to allow more ATA devices to be added to the workstation?()
A.
Network Interface card
B.
Port expansion card
C.
Serial interface card
D.
Modem card
【单选题】从资本市场线上选择资产组合,下列哪些说法正确?
A.
风险厌恶程度低的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
B.
风险厌恶程度高的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
C.
投资者选择能使他们的期望效用最大的投资组合
D.
风险厌恶程度高的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合 ,且 投资者选择能使他们的期望效用最大的投资组合
【简答题】Suppose that people consume only three goods, as shown in this table: a. What is the percentage change in the price of each of the three goods? b. Using a method similar to the consumer price index, c...
【单选题】采集散装化肥时, 当散装肥料小于 2.5 吨时采集( )样点,大于 80 吨时采集( )样点。
A.
7; 40
B.
6; 20
C.
9; 80
D.
8; 60
【单选题】采集散装化肥时,当散装肥料小于2.5吨时采集( )样点,大于80吨时采集( )样点。
A.
6;20
B.
7;40
C.
8;60
D.
9;80
【简答题】Individuals respond differently to the same drug. Besides age, other factors that affect the individual's response to drugs are the presence of disease, degree of nutrition or malnutrition, genetics, ...
【单选题】Does using a word processor affect a writer s style? The medium usually does do something to the message after all, even if Marshall McLuhan's claim that the medium simply is the message has been hear...
A.
The style. writers are employing.
B.
The way new writers are being recruited.
C.
The medium authors are using.
D.
The message authors are putting forward.
【简答题】Female capuchin monkeys were chosen for the research most probably because they are ________. [A] more inclined to weigh what they get [B] attentive to researchers’ instructions [C] nice in both appea...
【多选题】从资本市场线上选择资产组合,下列哪些说法正确?( )
A.
风险厌恶程度高的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
B.
投资者选择能使他们的期望效用最大的投资组合
C.
风险厌恶程度低的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
D.
投资者选择能使他们的风险最小的投资组合
【多选题】从资本市场线上选择资产组合,下列哪些说法正确?
A.
风险厌恶程度低的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
B.
风险厌恶程度高的投资者将比一般风险厌恶者较多投资于无风险资产,较少投资于风险资产的最优组合
C.
投资者选择能使他们的期望效用最大的投资组合
D.
所有说法都不对
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