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【简答题】
Taking up the system of the Rites of Zhou Dynasty emperors of the Ming and Qing dynasties came early in the____________ every summer solstice to offer sacrifices to the God of Earth, and the Gods of Five Sacred Mountains, etc.
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举一反三
【简答题】Suppose goods A and B are substitutes. If the price of good A increases, will the demand for good B increase or decrease?
【单选题】大数法则是保险经营的重要数理基础，其充分发挥作用的必要条件是（ ）。
A.
存在相当多同质的保险公司
B.
存在相当多不同质的保险公司
C.
存在相当多同质的风险单位
D.
存在相当多不同质的风险单位
【单选题】Suppose events A and B are exclusive, then which one of the following statements is true ( )?
A.
P(B|A) = 0
B.
A is independent with B
C.
D.
P(A+B) = 1
【简答题】Suppose goods A and B are complements. If the price of good A increases, will the demand for good B increase or decrease?
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