请问这一步为什么是H2Cit x2 不应该是HCit x2吗
第四章讨论答疑区
例题3-3
            This discussion has been locked so you can no longer reply to it.
            
        
        
            This forum has a limit to the number of forum postings you can make in a given time period - this is currently set at 3 posting(s) in 3 days