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2. 一个四边形被两条线分成3个三角形，问能不能确定中间的三角形的面积等于旁边两个三角形的和？
一, 底边等于斜边的2倍
二, 此四边形是平行四边形
还有这道题，有人确定了 选项A的错误之处，请大家确定答案 ，谢谢 。 53. In the store of a car dealer, less than 10 cars are equiped with fog light, and 40% of the cars have **window, Is the dealer has more car with fog light than those with **window? (1)80% cars have fog light and no window (2)52 cars have fog light or window or both
下面这个是新传上来的版本，我被这道题弄糊涂了。大家研究研究。
3. In the store of a car dealer, less than 10 cars are equiped with fog light, and 40% of the cars that equiped with fog light have **window, Is the dealer has more car with fog light than those with **window? (1)80% cars have fog light and window (2)52 cars have fog light or window or both(红色是我补充的，我选的A)
[此贴子已经被作者于2008-12-16 10:53:01编辑过] | 
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发表于 2008-12-16 08:49:00
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