The?Roller?Derby?Test?OMatic?app?is?based?on?the?popular?website?of?the?same?name,?and?will?give?you?multiple?choice?questions?to?help?you?learn?the?WFTDA?rules?of?flat-track?roller?derby.Please?send?any?feedback?to?the?email?listed?below.This?is?a?cut-down,?available-offline?version?of?the?main?site.Using?the?online?database?of?over?900?questions,?the?app?will?always?try?to?get?the?latest?questions.No?internet?connection?is?required?for?the?app?to?function. 【基本信息】 作者：Google Play提供 更新時(shí)間：2015-09-03 版本：0.4.6 系統(tǒng)：Android 2.1.x以上 語(yǔ)言：英文