【基礎級練習題52】
1. 剖面線區域之面績為何?<br/> (A) 227.2088 (B) 227.2808 (C) 227.2880 <p>答案應是c吧</p><p>呵呵</p> 面积 227.2880 <p>【基础级练习题52】答案:<br/>1. 剖面线区域之面积 = 227.2880,就是(C)</p><p>动画解题见:</p><p><a href="http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=6&page">http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=6&page</a>=</p>
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