【あなたはわかる？】昔正しいとされてた事が今も正しいとは限りませんクイズが死ぬほど意外な結果にwwww

Edited by: Dumbo ---------------------------------- Hello everyone, this is Dengan. I used to run a channel called HanaoDengan, but now I'm working hard on my own. I create content focused on studying, as well as math explanation videos. Thank you for your support. ◆Dengan has published a book on "study methods"! I've written everything I know about being a "genius," so if you're interested, please check it out below. ⬇︎ "100 Study Tips for Idiots by a Former Idiot" ⬇︎ https://www.amazon.co.jp/dp/4815612854/ ◆Dengan's Daily Life Channel Management Cast: Dengan: Twitter   / dengan875   Editor: Dumbo: Twitter   / dam_bo_   ⬇︎Other Editing Collaborators⬇︎ ・Yosshi   / yosshi_ediedu   ・Takuya   / takuya_edit   ・Shige #Dengan's Daily Life # #