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【单选题】
关于风险单位同分布的说法,错误的是( )。
A.
同分布的两个变量,他们的期望值相等,但方差不相等
B.
风险单位同分布对于保险人的意义在于其可以据此向每个潜在的被保险人以相同的收取保费
C.
随着独立同分布的风险单位数量的增多,均值与真实损失的期望值的相对偏差就会减少
D.
某类保险业务独立同分布的风险单位的数量越多,保险人就越有信心
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参考答案:
举一反三
【单选题】In para.13,“You set the pace. I will try to adjust to you.” What can we know from this sentence ?
A.
My father depends on me physically.
B.
My father depends on me spiritually.
C.
I depend on my father spiritually.
D.
I depend on my father physically.
【单选题】The sentence "You set the pace. I will try to adjust to you." means____.
A.
the son walks first and the father will try to follow him
B.
the son stops so that the father can try to change the way he walks
C.
the son decides on the speed and the father will try to walk at the same speed
D.
the son decides which way to go and the father will try to go that way
【单选题】如图所示,液力变矩器中的哪个零件由曲轴直接驱动 A. B. C. D.
A.
A
B.
B
C.
C
D.
D
【多选题】关于对悬浮预热窑的特点的描述不正确的是:( )
A.
生料粒能与热气流充分接触。
B.
气、固相接触面大,传热速度快、效率高。
C.
有利于提高窑的生产能力,但使熟料热耗降低。
D.
有利于提高窑的生产能力,但使熟料热耗提高。
【单选题】癫痫病人CSF中上升的有
A.
GABA
B.
DA
C.
Ach
D.
5-HT
E.
HVA
【简答题】Can you re_____ the pace of this watch so that it keeps good time? 校准
【简答题】Welcome to the Public Bus System. I ts bus network operates 365 days of the year and has 11 that can take you to your destination( 目的地 ) quickly and easily. You can travel round the city for just $ 12...
【多选题】嗜冷微生物能在低温生长的原因()
A.
具备有效进行催化反应的酶
B.
细胞质膜低温下有较好流动性
C.
主动运输功能好,低温下能有效集中营养物质
D.
含有大量不饱和脂肪酸
【单选题】癫痫病人CSF中上升的有
A.
GABA
B.
DA
C.
ACh
D.
5-HT
E.
HVA
【单选题】癫痫病人CSF中上升的有()
A.
DA
B.
Ach
C.
GABA
D.
5-HT
E.
HVA
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