應該有
俺這方麵比較弱,
中學沒學過
•
不知道有沒有formula,有也記不住,孩子們做mathcount時跟著複習過,隻知道解題思路是這樣的
-雙喜臨門2024-
♀
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11/23/2025 postreply
20:25:52
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