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[Problem Solving]

试题详情

题目:

 If  is an integer, what is the value of a?
(1) 14 < 1a < 23
(2) The integer a is odd. 

选项:

A、Aif statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
B、Bif statement (2) ALONE is sufficient to answer the question but statement (1) alone is not sufficient;
C、Cif the two statements TAKEN TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient;
D、Dif EACH statement ALONE is sufficient to answer the question;
E、Eif the two statements TAKEN TOGETHER are still NOT sufficient to answer the question.

答案:

C

提问:

答案是C,我选了A。 我觉得a可以是25, 625。 于是就有两个值了。所以我选了A。。。我觉得第一个a只有16. 为什么不充足呢? 谢谢

解答:

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解答: sysadmin

提问:

答案是C,我选了A。 我觉得a可以是25, 625。 于是就有两个值了。所以我选了A。。。我觉得第一个a只有16. 为什么不充足呢? 谢谢

解答:

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阅读2152
解答: sysadmin老师

提问:

(1) 14 < 1a < 23 1不是可以推出a=16,?? 我选了A

解答:

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阅读2140
解答: sysadmin老师

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