2018-03-16から1日間の記事一覧
link-edge(prod)> ppp st1.answer_usages.first {"answer_attempt"=> {"_type"=>"MultipleChoiceAttempt", "choices"=>[BSON::ObjectId('57984b7c9c1cfd59cf00002c')], "correct"=>true, "id"=>BSON::ObjectId('5963fe1e0e056d709b002235')}, "correct"=>tru…
