氯化钕到底是5水还是6水呀?
试剂瓶上的化学式是5水的啊
全变 2008-08-31 13:10
钻石guppy 2008-08-31 17:33
钻石guppy 2008-08-31 17:35
Carneades 2008-08-31 17:40
兔子喜欢某酸钾 2008-08-31 19:19
钻石guppy 2008-08-31 21:45
Carneades 2008-09-01 00:56
Snake 2008-09-01 19:57
东风不破 2008-09-02 12:54