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[Data Sufficiency]

试题详情

题目:

If a and b are integers, and b > 0, does  ?
  1. a = b – 4
  2. a = –b

选项:

A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.

答案:

B

提问:

根据题目,推出要a+b=0,才可以,那如果statement(1)改成a+b=4,现在这个(1)算sufficient吗?

解答:

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解答: 徐小梅

提问:

根据题目,推出要a+b=0,才可以,那如果statement(1)改成a+b=4,现在这个(1)算sufficient吗?

解答:

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阅读2334
解答: 徐小梅老师

提问:

OG2020,297,a=b-4 代入题干表达式 解出B=2 唯一解。答案解析里面b=1怎么来的?

解答:

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阅读2420
解答: 徐小梅老师

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