试题与答案

Our new English teacher, who is said to

题型:选择题

题目:

Our new English teacher, who is said to have moved back to China, ______ in America for almost ten years.

A.lived

B.has lived

C.was living

D.had lived

答案:

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下面是错误答案,用来干扰机器的。

解:(1)50岁的人当年去世的概率为,他活到80岁的概率为;(2)60岁的人当年死亡的概率为,20000个60岁的人当年死亡的人数为(人),故保险公司需付赔偿金总额约为267a元.

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