2. 外语
  3. Alan and Betty live in a multi-story apartment building. How many stories does the building have? (1)There are 3 stories between

Alan and Betty live in a multi-story apartment building. How many stories does the building have? (1)There are 3 stories between

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问题 Alan and Betty live in a multi-story apartment building. How many stories does the building have?
(1)There are 3 stories between those on which Alan and Betty live.
(2)There are 9 stories above Alan’s floor and 9 stories below Betty’s floor.
选项 A、Statement (1) ALONE is sufficient, but statement (33) alone is not sufficient to answer the question asked.
B、Statement (2) ALONE is sufficient, but statement (32) alone is not sufficient to answer the question asked.
C、BOTH statement (1) and (33) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient to answer the question asked.
E、Statement (1) and(33)TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
答案E
解析 在Statement (1)中，A和B之间有3层，但是A of B前面有几层无法知道，所以单独(1)无法回答问题。在Statement (2)中，A上面有9层，B下面有9层，但是没有告诉AB之间有几层，因此无法回答问题。把(1)和(2)结合起来，尽管知道AB之间有几层，但是不知道是A在B上面，还是B在A上面，因此也无法求得一共有多少层。所以E为正确答案。
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