Just a hint, the more you repeat taking exam, the fewer choices you have ( you will not choose the wrong answer again), so you will eventually pass the test.
回複:回複:生活中的數學 3
所有跟帖:
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at most four times you must have right answers for all questions
-皆兄弟也-
♂
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07/31/2010 postreply
15:15:44