题目

阅读下面语言材料，完成表格中相关内容。 The Internet has become not only a necessary but also a virtual (虚拟的) world for people. With the development of the Internet, Internet friendship has also become very popular. Online friends are those people who have known each other through the Internet. Making Internet friends is the same as making pen friends. Many famous websites offer quite warm Internet friendship. One can find many people on these websites and they share the same interests. It is difficult to make friends with someone you can’t see or feel. That is 实验室将9 g铝粉跟一定量的金属氧化物粉末混合形成铝热剂。发生铝热反应之后，所得固体中含金属单质为18 g，则该氧化物粉末不可能是A．Fe2O3和MnO2B．Fe2O3和V2O5了C．Cr2O3和V2O5D．Fe3O4和FeO