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【多选题】
关于股票或股票组合的β系数,下列说法中不正确的有( )。A.
如果某股票的β系数＝0.5，表明它的风险是市场组合风险的0.5倍
B.
β系数可以为负数
C.
投资组合的β系数一定会比组合中单个证券的β系数低
D.
某一股票的β值的大小反映了这种股报酬率的波动与整个市场报酬率的波动之间的相关性及程度
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【单选题】Which statement about “stream of consciousness” as a literary term is NOT TRUE?
A.
It is a mode of narration with smooth flow of language as well as thoughts.
B.
It is a mode of narration in which perceptions mingle with conscious and half-conscious thoughts, memories and feelings.
C.
It is a mode of narration that is often discontinuous and random, reflecting the confused individual and the chaotic world.
D.
It is a mode of narration that reproduces the continuous flow of a character’s mental process.
【单选题】托比•塔尔卡洛特(Toby Talkalot)订购了一项本地电话服务,该服务每月收取10美元的固定费用,并允许他拨打尽可能多的本地电话,而无需进一步付费。假设商品1是本地电话使用以外的商品集合,假设商品2是本地电话使用。(商品1在水平轴和商品2在垂直轴)。星期一,托比根本没有用电话。由此我们可以得出,他周一选择的消费束的无差异曲线的斜率m为:
A.
正。
B.
小于或等于0。
C.
0。
D.
大于或等于0。
【单选题】White rice is the world ’ s most popular form of rice. But it goes through a milling process that removes many nutrients（营养成分） . As a result, people who eat a poor diet based on white rice may not get...
B.
Because they feed on white rice
C.
Because white rice contains no vitamin
D.
Because white rice has no nutrients
【单选题】The main purpose of port State control is not to___________.
A.
prevent an unsafe ship proceeding to sea
B.
prevent a ship threatening the marine environment
C.
fine the ships
D.
confirm a safe sailing
【单选题】Analyze the following statement, and then choose one of the options that you think is best to use in academic writing:Would it be possible to argue on the basis of our results that this process depend...
A.
On the basis of our results, we hypothesize that this process depends on both factors X and Y.
B.
It is possible to argue on the basis of our results that this process depends not only on factor X, but also on factor Y.
C.
We think it is reasonable to argue on the basis of our results that this process probably depends on both factors X and Y.
D.
We would like to argue that this process probably depends on both factors X and Y, according to our results.
E.
According to our results, this process very likely depends not only on factor X, but also on factor Y.
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