4. 9/56; 9
5. -1; 3; (-1,1)
7. 3; (32/5, 24/5)
回複:日本高考題
本帖於 2009-08-17 12:34:02 時間, 由普通用戶 康MM 編輯
4. 9/56; 9
5. -1; 3; (-1,1)
7. 3; (32/5, 24/5)
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