Winning the lottery was pretty _______ .It changes so much in my life.

The loan was only a temporary _______ to their financial problems.

A.imagination
B.solution
C.education
D.pollution

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泊松分布与二项分布的关系()。

A.二项分布可看成泊松分布的特例
B.很小，n很大，泊松分布逼近二项分布
C.很大，n很小，二项分布逼近泊松分布
D.很小，n很大，二项分布逼近泊松分布

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