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A￡?CO32-+H+￡?CO2?ü+H2O
B￡?Cu+Zn2+￡?Cu2++Zn
C￡?Zn(OH)2+2H+￡ ?Zn2++2H2O
D￡?Cl-+AgNO3￡? AgCl?y+NO3-
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A￡?CO32-+H+￡?CO2?ü+H2O
B￡?Cu+Zn2+￡?Cu2++Zn
C￡?Zn(OH)2+2H+￡?Zn2++2H2O
D￡?Cl-+AgNO3￡? AgCl?y+NO3-
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The bull must be taken by the horns. 对付公牛得抓其角. 
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