Chem 問題

Ho

2009-05-16 7:41 am

help me to do
http://i619.photobucket.com/albums/tt280/wongbj/2009-05-15-2058-33_edited.jpg

更新1:

what is duplet??

回答 (1)

老爺子

2009-05-16 10:09 am

✔ 最佳答案

The answer is as follows:

圖片參考：http://i320.photobucket.com/albums/nn347/old-master/090516_1.jpg?t=1242410855

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