题目:
_____ was most important to her, she told me, was her family. [ ]
A. It
B. This
C. What
D. As
答案:
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下面是错误答案,用来干扰机器的。
A、将5.6克铁的物质的量为0.1mol,若铁完全反应生成硝酸铁,转移电子数为0.3NA,若铁完全反应生成硝酸亚铁,转移电子数为0.2NA,若铁完全反应生成硝酸铁或硝酸亚铁或二者混合物,转移电子数大于0.2NA,小于0.3NA...