Just press the 'Next' button, quiz lesson will go on.
=== Points ===
【2】 With timer quiz
【3】You can study more by new version.(Coming soon.)
【4】3 seconds rule : Answering correctly, the quiz problem will be deleted.(You can repeat all questions you failed.)
The author (a medical doctor who has experiences of teaching in addition to hospital practice), is NOT a programmer. ( ONLY a DOCTOR )
(I studied programing by myself.) So please rate this app not by artistic view, but by practical view .
Devices: iPhone6 or LATER recommended ,
iPad Pro(12.9 inch) 2nd generation , 3rd
Much more beautifully.(All rights considered)
With Family Sharing set up, up to six family members can use this app.