Edit | Delete
溶けにくい! 🌟結晶全体が共有結合によって強く結びついている ダイヤモンド、黒鉛、ケイ素、二酸化ケイ素
化学
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO? Memorize
user(0688aaaa4db7)
𝕏
Flag post / Block