→ annieyue: B橋寬13水流速203/29 23:01
推 k9t8u5: 報數1~回答B題~03/29 23:01
推 machi0730: B橋寬13水流速203/29 23:02
推 ggfishhh: A. 57.5m/s 和 34.5m/s03/29 23:05
→ ggfishhh: B. 13m. 和2m/s03/29 23:05
→ annieyue: A A車55 B車3303/29 23:06
→ RichLook: 補箭頭03/29 23:09
推 k9t8u5: A火車55m/h B火車33m/h03/29 23:10
→ k9t8u5: 橋13公尺 水流2公尺/h XD03/29 23:10
→ ha2266: 2.橋寬13公尺,水流秒速2公尺03/29 23:17
→ cacangel: 1.A火車55m/h,B火車33m/h 2.橋寬13公尺,水流秒速2公尺03/30 00:17
→ kerfish: A.49.25, 68.75 B.13, 203/30 00:34
→ kerfish: 打錯 A.49.25, 38.7403/30 00:36
推 pipifan: A 55m/h B 33m/h03/30 00:36
→ kerfish: 38.7503/30 00:36
→ pipifan: 橋寬13m 流速2m/s03/30 00:37
→ kerfish: 嗄嗄 一直打錯 重推一次QQ03/30 00:38
→ kerfish: A.49.25, 38.75 B.13, 203/30 00:38
→ kerfish: 不知道第一題的越過是指車頭超過就算還是全車長都超過03/30 00:40
→ s86431: 橋寬13m 流速2m/s 03/30 01:10
推 mamiesea: 1.55、33 2.13、203/30 02:23
→ mamiesea: 忘記用箭頭>< 1.55、33 2.13、203/30 02:24
→ kalamotoro: 1.55、33 2.13、203/30 10:42
→ iceberg5995: A. A車速55m/s B車33m/s B.橋寬13m 水流速2m/s03/30 15:50
→ moonseagull: 1.A火車55m/h B火車33m/h04/01 16:47
→ moonseagull: 2.橋寬13公尺,水流秒速2公尺04/01 16:47
※ 編輯: weiweiyu (42.73.158.138), 04/01/2015 20:58:18