最終更新日：2025/12/04
The veteran geologist smiled as he pointed out an oil bug in the thin section, recognizing the tiny foraminiferan that suggested ancient marine deposits.
正解を見る
The veteran geologist smiled as he pointed out an oil bug in the thin section, recognizing the tiny foraminiferan that suggested ancient marine deposits.
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）
