什么是PPT？

所有跟帖： 

• 怦怦跳 -Mich_Agent- ♂ (169 bytes) () 12/31/2018 postreply 18:46:00

• 哦，不是 陪陪她 -mancini- ♂ (0 bytes) () 12/31/2018 postreply 18:54:24

• Plunge protection team. -顺水行船- ♂ (0 bytes) () 12/31/2018 postreply 18:46:17

• Precipitate -智芜- ♀ (0 bytes) () 12/31/2018 postreply 18:50:13

• 不是＂屁屁打＂的意思？ -Tianyazi- ♂ (0 bytes) () 12/31/2018 postreply 18:54:41

• parts per thousand -郑倩- ♀ (6 bytes) () 12/31/2018 postreply 18:58:45

• parts per thousand -郑倩- ♀ (0 bytes) () 12/31/2018 postreply 18:58:50

• Personal Productivity Tool -嫖虫- ♀ (0 bytes) () 12/31/2018 postreply 19:03:25