试题与答案

What is the 1st term in sequence S ?() (1

题型:单项选择题

题目:

What is the 1st term in sequence S ?()
(1)The 3 rd term in S is 2.
(2)The 2 nd term in S is twice the 1 st, and the 3 rd term is three times the 2 nd.

A.条件(1)充分,但条件(2)不充分.

B.条件(2)充分,但条件(1)不充分.

C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.

D.条件(1)充分,条件(2)也充分.

E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

答案:

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参考答案:A

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