polar chemistry In this edition of Crash Course Chemistry, Hank comes out for Team Polar, and describes why these molecules are so interesting to him. ... 相關軟體 Polarity 下載 Netscape Navigator 網路瀏覽器 建構在Firefox2.0上的獨立型瀏覽器。 自動修正網址輸入錯誤的功能。 ... 了解更多 »