题目

pollution levelson the rise, the Environmental Protection Committee is searching for ways tofight the problem. (用适当的词填空) 答案:【1】With下列反应中可用来设计成原电池的是(  )A. CaO +H2O===Ca(OH)2 B. NaOH+HCl===NaCl+H2OC. 2KClO32KCl+3O2↑ D. Zn+2HCl===ZnCl2+H2↑
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