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【单选题】
According to the fourth paragraph, when trouble looms for a small firm,______.A.
the firm will choose to inform. its outside directors first
B.
outside directors are the only people to help the firm out of it
C.
outside directors have more incentives to quit than to stay
D.
the firm will choose to dismiss its outside directors
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【单选题】考虑两种 完全负相关 的风险证券A和B,其中A的期望收益率为10%,标准差0.16;B的期望收益率8%,标准差为0.12。则A和B在最小标准差资产组合中的权重分别是( )。
A.
．0.24，0.76
B.
0.50，0.50
C.
．0.43，0.57
D.
0.57，0.43
【单选题】It was not until I received the text message that I knew___a serious disease he had been suffering from,and began to worry about___he could pull through this Christmas. [ ]
A.
what; whether
B.
how ; if
C.
that; that D .which ; how
【简答题】应答器是一种能向车载子系统发送报文信息的传输设备，既可以（），也可连接轨旁单元传送可变信息。
【简答题】偏柱犁因其工作部件的（），其作业时在受力与布置方面均有一定的影响。
【单选题】I knew that he _____ for Beijing two hours before.
A.
left
B.
leaves
C.
is leaving
D.
had left
【单选题】考虑两种完全负相关的风险证券A和B。A的期望收益率为10%，标准差为16%。B的期望收益率为8%，标准差为12%。 用这两种证券组合成的无风险投资组合的收益率将为_____。
A.
8.5%
B.
9.0%
C.
8.9%
D.
9 .9%
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