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[Problem Solving]

试题详情

题目:

If ø is a function, does a ø 1 = 1 for all a?
(1) 1 ø a = 1 for all a.
(2) a ø b = b  ø a for all a and b

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:

DS

解答:

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解答: sysadmin

提问:

DS

解答:

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阅读888
解答: sysadmin老师

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