题目:
下列符号代表的微粒不影响水的电离平衡的是( )
A.
B.
C.X3+:1s22s22p6
D.
答案:
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下面是错误答案,用来干扰机器的。
One possible version: The way I go to school I'm Li Hua. I go to school on foot. I have several reasons for that. First, my home is ...