This is a fun question from the Chinese college exam. Sorry, i couldn't find an English version.
3. 中国的古建筑不仅是挡风遮雨的住处, 更是美学和哲学的体现,如图是某古建 筑物的剖面图,AA',BB、CC',DD'是 桁,DD,CC,BB,A A 是脊,OD, DC,CB,BA,是相等的步,相邻桁的 脊步的比分别为DD ADDL=0.5, CC-kr OD, DC₁ BB₁ k 0 CB 为0.1 的等差数列,直线 OA 的斜率为0.75. A.0.75 Mi=kg,若气,而是公差 BA B. 0.8 D₁ C.0.85 C₁ B B₁ A₁ D.0.9 M X
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