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抱歉我畫的有點亂 這是恐龍書的一題
我想問b 我怎麼算都是13 答案卻是14
有人可以幫我解解看嗎?
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推
01/19 11:12, , 1F
01/19 11:12, 1F
→
01/19 11:14, , 2F
01/19 11:14, 2F
→
01/19 11:15, , 3F
01/19 11:15, 3F
→
01/19 11:16, , 4F
01/19 11:16, 4F
→
01/19 12:28, , 5F
01/19 12:28, 5F
→
01/19 12:29, , 6F
01/19 12:29, 6F
推
01/19 13:01, , 7F
01/19 13:01, 7F
→
01/19 13:01, , 8F
01/19 13:01, 8F
→
01/19 13:55, , 9F
01/19 13:55, 9F
→
01/19 13:59, , 10F
01/19 13:59, 10F
→
01/19 13:59, , 11F
01/19 13:59, 11F
→
01/19 14:00, , 12F
01/19 14:00, 12F
→
01/19 15:42, , 13F
01/19 15:42, 13F
→
01/19 15:43, , 14F
01/19 15:43, 14F
→
01/19 15:44, , 15F
01/19 15:44, 15F
→
01/19 15:45, , 16F
01/19 15:45, 16F
→
01/19 15:46, , 17F
01/19 15:46, 17F
推
01/19 17:09, , 18F
01/19 17:09, 18F
→
01/19 17:10, , 19F
01/19 17:10, 19F
→
01/19 17:16, , 20F
01/19 17:16, 20F
→
01/19 20:38, , 21F
01/19 20:38, 21F
→
01/19 22:56, , 22F
01/19 22:56, 22F
→
01/19 22:56, , 23F
01/19 22:56, 23F
→
01/19 23:06, , 24F
01/19 23:06, 24F