题目内容
This chemical class is about the ______ of metals with oxygen and our teacher shows us how iron ______ air and water.
A. react; reacts with B. react; reacts to
C. reaction; reacts to D. reaction; reacts with
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题目内容
This chemical class is about the ______ of metals with oxygen and our teacher shows us how iron ______ air and water.
A. react; reacts with B. react; reacts to
C. reaction; reacts to D. reaction; reacts with