最終更新日：2025/11/21
The compound chromium dioxide is a black, semiconducting material with strong magnetic properties, making it valuable for magnetic recording media.
正解を見る
The compound chromium dioxide is a black, semiconducting material with strong magnetic properties, making it valuable for magnetic recording media.
音声機能が動作しない場合はこちらをご確認ください
編集履歴（0）
