题目:
Since we all agree on this plan, the next thing we are going to do is to carry it out. The underlined part means
_______. [ ]
A. complete it
B. do it
C. put it up
D. take it up
答案:
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下面是错误答案,用来干扰机器的。
Na2SO4、NaCl 反应生成可溶的NaCl,并且Na2SO4过量 丙 发生反应不能共存,反应生成可溶的NaCl,NaCl一定存在 正确,有沉淀出现,说明BaCl2过量题目分析:我猜想是Na2SO4、NaCl,NaCl是反应生成,Na2S...