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作者 thisday 在 PTT 全部看板的留言(推文), 共3832則
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1F推:順便請問一下醫師 我有位親戚的小孩刷牙習慣不佳08/27 18:25
2F→:乳牙蛀得很糟糕 父母說乳牙不重要 恆牙再好好刷就好了...08/27 18:26
3F→:最近他換牙 恆牙長得非常好!!! 小時候的乳牙真的不重要嗎?08/27 18:27
5F推:先上矯正器 讓牙齒動一動 鬆一點 會比較好拔08/25 08:48
6F→:我的醫生是這樣跟我說的^^08/25 08:49
234F推:巴龍跑速008/23 19:11
8F推:嘿壓 我跟q大記的一樣08/23 10:33
5F推:是家人>///<08/23 08:30
2F推:#1FOnY73x 那翻譯有問題唷!!08/30 17:37
42F推:利用 x<-208/17 16:14
43F推:x= [ -t^2±√(9y^4-8) ] / (2y^2-2 )08/17 16:18
44F→:就可以算出08/17 16:18
45F→:y<-108/17 16:19
46F→:抱歉 我的y就是這邊的t !!!08/17 16:19
47F→:所以這的確是高中範圍^^08/17 16:20
48F→:另外 圖形左邊部分應該是遞減喔08/17 16:20
49F→:http://goo.gl/BkrGSB08/17 16:30
52F→:哪邊不懂呢??08/17 19:47
56F→:[-t^2±√(9t^4-8)] / (2t^2-2 ) < -208/18 10:44
57F→:解這個不等式 討論一下範圍 即可算出 t<-108/18 10:46
1F推:我有個小疑問耶QQ 矯正期間不是也要隨身攜帶刷牙器具嗎??08/16 16:26
2F→:矯正很辛苦 是一輩子的事 +U08/16 16:27
8F推:+u08/16 08:13
23F推:如果刺到肉破皮 不舒服 可以回診調整 或是先用小蠟條08/17 11:15
2F→:水喔08/16 08:13