당신은 몇 초안에 8을 찾았나요?
만약, 총 6문제를 1분안에 풀 수있는면 상위 10%의 집중력이라고 합니다.
Language Changed
{{siblingLang}}
View in {{origin_lang}}language_krlanguage_jplanguage_enlanguage_frlanguage_brlanguage_lalanguage_delanguage_itlanguage_cnlanguage_twlanguage_thlanguage_idlanguage_mylanguage_vnlanguage_nllanguage_filanguage_trlanguage_selanguage_dklanguage_no