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题库 / Prep2007E1-DS-81
In the figure above, what is the ratio ~$\frac{KN}{MN}$~ ?
(1) The perimeter of rectangle KLMN is 30 meters.
(2) The three small rectangles have the same dimensions.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
只要满足MB=2BN，AB=AC这两个条件就可以啊。（2）肯定不充分啊。。。
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