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【单选题】
设A 与B 为两个互不相容事件,P(B)>0,则下面结论中正确的是( )A.
P(B|A)>0
B.
P(A|B)=0
C.
P(A|B)=P(B)-P(A)
D.
P( )=1-P(A)
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举一反三
【单选题】A country with a high uncertainty avoidance ________.
A.
is highly structured and depends on rules and social institutions to cope with uncertainty
B.
is highly structured and does not depend on rules and social institutions to cope with uncertainty
C.
has no rules
D.
has no structure or social institutions
【单选题】某投资者经过分析预计 B 公司股票价格会上涨,准备做保证金买长交易。其自己有本金 2 万元, B 股票目前的市场价格为 10 元,假定法定保证金比率为 50% 。投资者可以将自己的 2 万元存入券商保证金账户,向券商贷款 2 万元,购买市值为 4 万元的 B 公司股票 4000 股。若保证金最低维持率为25%时,抵押证券的最低市场价格为 ?
A.
6.67
B.
5.35
C.
8.75
D.
9.45
【简答题】A．popularity B．publicity C．difficulty D．uncertainty
【单选题】同一条无差异曲线上的不同点表示
A.
同一条无差异曲线上的不同点表示
B.
效用水平相同，所消费的两种商品组合不同
C.
效用水平不同，所消费的两种商品组合也不同
D.
效用水平相同，所消费的两种商品组合也相同
【单选题】According to the Uncertainty Principle,______ .
A.
it was theoretically possible to predict the future from Newton's laws
B.
it was not theoretically possible to know the present from Newton's laws
C.
there is no limit to the product of the uncertainty in a particle's position and the uncertainty in its momentum
D.
the more accurately one is able to define the position of a particle, the more certain he feels about its momentum
【单选题】某投资者经过分析预计 B 公司股票价格会上涨,准备做保证金买长交易。其自己有本金 2 万元, B 股票目前的市场价格为 10 元,假定法定保证金比率为 50% 。投资者可以将自己的 2 万元存入券商保证金账户,向券商贷款 2 万元,购买市值为 4 万元的 B 公司股票 4000 股。 如果 B 公司股票涨到 13 元一股,投资者委托券商卖出 4000 股股票, 若不考虑手续费和借款利息,投资者可 ...
A.
8000元
B.
10000元
C.
12000元
D.
14000元
【单选题】According to the Uncertainty Principle ______.
A.
there is no limit to the product of the uncertainty in a particle's position and the uncertainty in its momentum
B.
the more accurately one is able to define the position of a particle, the more certain he feels about its momentum
C.
it was theoretically possible to predict the future from Newton's laws
D.
it was not theoretically possible to know the present from Newton's laws
【单选题】同一条无差异曲线的不同点表示( )。
A.
效用水平不同，但两种商品组合比例相同。
B.
效用水平相同，但两种商品组合比例不同
C.
效用水平不同，两种商品的组合比例也不相同
D.
效用水平相同，两种商品的组合比例也相同
【单选题】In a culture of high uncertainty avoidance
A.
People tend to pursue life and job security.
B.
People are more comfortable with ambiguity and uncertainty.
C.
People are able to cope with the stress and anxiety that uncertainty causes.
D.
People are able to tolerate deviant behaviors.
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