回复：请教小白兔, pjiang, 及各位高人关于F1递交485 后申请OPT的问题

Theoretically, you are not eligible for OPT anymore. Because OPT is an extension of F-1 Visa. After filing 485, you have shown your intension to immigrate, which prevent you from getting any visa or visa extention without immigration intension, such as F-1, F-2, OPT...

Try to get EAD with your 485 application.